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PC WORLD　电脑世界　2016年 7月份杂志 IT 资安 电脑 硬件 评比

资讯科技硬件评比杂志 PC WORLD 2015 - 04月版

电脑世界 PC WORLD 3 月份杂志 电脑硬体评比

第1 章Linux操作系统概述................... .......................................................................... 2 1.1 Linux发展历史........................................................ 2 1.1.1 Linux的诞生和发展.............................................. 2 1.1.2 Linux名称的由来........................................ ........ 3 1.2 Linux的发展要素...................................................... 3 1.2.1 U N I X操作系统.................................................. 4 1.2.2 Minix操作系统.................................................. 4 1.2.3 POSIX 标准.....................................................4 1.3 Linux 与 U N I X 的异同.................................................. 5 1 . 4 操作系统类型选择和内核版本的选择..................................... 5 1.4.1常见的不同公司发行的Linux异同................................. 6 1.4.2 内核版木的选择..................................................6 1.5 Linux的系统架构...................................................... 7 1.5.1 Linux内核的主要模块............................................ 7 1.5.2 Linux的文件结构................................................ 9 1.6 G N U 通用公共许可证..................................................10 1.6.1 G P L许可证的历史.............................................. 10 1.6.2 G P L 的白由理念................................................ 10 1.6.3 G P L 的基本条款................................................ 11 1.6.4关于G P L 许町证的争议......................................... 12 1.7 Linux软件开发的可借鉴之处........................：.................. 12 1-8 .................................................................13 第2 章Linux编程环境....................................................................................................14 2.1 Linux环境下的编辑器................................................. 14 2.1.1 v i m使用简介...................................................14 2 . 1 . 2使用v i m建立文件.............................................. 15 2 . 1 . 3使用v i m编辑文本.............................................. 16 2.1.4 v i m的格式设置.................................................18 目录 2.1.5 vim 配置文件....................................................................................................... .. 2 . 1 . 6 使用其他编辑器................................................................................................... 2.2 Linux下的G C C 编译器工具集.......................................... 19 2.2.1 G C C 简介......................................................19 2 . 2 . 2 编译程序的基本知识......................................................................................... 21 2.2.3 .单个文件编译成执行文件........................................ 22 2 . 2 . 4编译生成目标文件.............................................. 22 2 . 2 . 5多文件编译............ ........................................ 23 2.2.6 预处理........................................................ 24 2 . 2 . 7编译成汇编语言.................................................24 2 . 2 . 8生成和使用静态链接库.......................................... 25 2 . 2 . 9生成动态链接库.................................................26 2.2.10动态加载库................................................... 29 2.2.11 G C C 常用选项................................................ 31 2 . 2 . 1 2编译环境的搭建................................................33 2.3 Makefile 文件简介.....................................................34 2.3.1 一个多文件的工程例子............................. ............. 34 2 . 3 . 2多文件工程的编译.............................................. 36 2.3.3 Makefile 的规则.................................................37 2.3.4 Makefile 中使用变量............................................ 39 2 . 3 . 5搜索路径...................................................... 43 2 . 3 . 6自动推导规则.................................................. 44 2.3.7 递归 make......................................................44 2.3.8 Makefile 中的函数.............................................. 46 2 . 4 用G D B 调试程序..................................................... 47 2 . 4 . 1编译可调试程序.................................................48 2.4.2 使用G D B 调试程序............................................. 49 2.4.3 G D B 常用命令..................................................52 2.4.4 其他的 G D B ....................................................59 2.5 顿.................................................................60 第3 章文件系统简介........................................................ 61 3.1 Linux下的文件系统.................................................. 61 3.1.1 Linux下文件的内涵............................................. 61 3.1.2 文件系统的创建................................................. 62 3 . 1 . 3挂接文件系统.................................................. 64 3.1.4 索弓丨节点 inode.......... •'...................................... 65 3.1.5 普通文件...................................................... 66 3 . 1 . 6设备文件...................................................... 66 3 . 1 . 7虚拟文件系统V F S .............................................. 68 目录 3.2 文件的通用操作方法................................................. 72 3 . 2 . 1文件描述符.................................................... 72 3 . 2 . 2打开创建文件open()、create()函数................................ 72 3 . 2 . 3关闭文件closeO函数............................................ 76 3 . 2 . 4读取文件read()函数............................................. 77 3.2.5 写文件write()函数.............................................. 79 3 . 2 . 6文件偏移lseekO函数............................................ 80 3 . 2 . 7获得文件状态fstat()函数.....................•'................... 83 3 . 2 . 8文件空间映射m m a p ()函数....................................... 85 3 . 2 . 9文件属性fcntl()函数............................................. 88 3. 2 . 1 0文件输入输出控制ioctl()函数....................................92 3.3 socket文件类型....................................................... 93 3.4 /J、@ .................................................................93 第4 章程序、进程和线程.................................................... 94 4 . 1 程序、进程和线程的概念.............................................. 94 4 . 1 . 1程序和进程的差别............................................ ’."94 4.1.2 Linux环境下的进程............................................. 95 4 . 1 . 3进程和线程.................................................... 96 4 . 2 进程产生的方式...................................................... 96 4.2.1 进程号........................................................ 96 4.2.2 进蟬复制 fork()................................................. 97 4.2.3 system()方式....................................................98 4.2.4 进程执行exec()函数系列......................................... 99 4 . 2 . 5所有用户态进程的产生进程init................................. 100 4 . 3 进程间通信和同步................................................... 101 4.3.1 半双工管道................................................... 101 4.3.2 命名管道..................................................... 107 4.3.3 消息队列..................................................... 108 4 . 3 . 4消息队列的一个例子........................................... 114 4.3.5 信号量......................... .............................. 116 4 . 3 . 6共享内存..................................................... 121 4.3.7 信号.......................................................... 124 4.4 Linux下的线程...................................................... 127 4 . 4 . 1多线程编程实例................................................127 4.4.2 Linux 下线程创建函数 pthread_create()............................ 129 4.4.3 线程的结束函数 pthread_join()和 pthread_exit().....................129 4.4.4 线程的属性................................................... 130 4 . 4 . 5线程间的互斥................................................. 132 4 . 4 . 6线程中使用信号量..............................................133 • VII • n 录 4-5 純............................................................... 136 第2 篇Linux用户层网络编程 第5 章T C P / I P协议族简介.................................................. 138 5.1 O S I网络分层介绍....................................................138 5.1.1 O S I网络分层结构............................................. 138 5.1.2 O S I的7 层网络结构........................................... 139 5.1.3 O S I参考模塑中的数据传输..................................... 140 5.2 TCP/IP 协议找....................................................... 141 5.2.1 TCP/IP协议栈参考模型......................................... 141 5 . 2 . 2主机到网络层协议............................................. 143 5.2.3 IP 协议....................................................... 144 5.2.4 网际控制报文协议（ICMP) .................................... 146 5.2.5 传输控制协议（TCP) ......................................... 150 5 . 2 . 6用户数据报文协议（U D P ) ..................................... 154 5 . 2 . 7地址解析协议（A R P) ......................................... 156 5.3 IP地址分类与T C P / U D P端U .......................................... 158 5 . 3 . 1因特网中IP地址的分类........................................ 159 5.3.2 子网掩码(subnet mask address) ................................ 161 5.3.3 IP地址的配置................................................. 162 5.3.4 端口......................................................... 163 5 . 4 主机字节序和网络字节序............................................. 163 5 . 4 . 1字节序的含义................................................. 164 5 . 4 . 2网络字节序的转换............................................. 164 5.5 /J、@ ........................................................... .....166 第6 章应用层网络服务程序简介...................... ;..................... 167 6.1 H T T P协议和服务....................................................167 6.1.1 H T T P 协议概述.................................................167 6.1.2 H T T P协议的基本过程.......................................... 168 6.2 F T P协议和服务......................................................170 6.2.1 F T P协议概述..................................................170 6.2.2 F T P协议的工作模式........................................... 172 6.2.3 F T P协议的传输方式........................................... 172 6.2.4 —个简单的F T P过程........................................... 173 6.2.5 常用的F T P工具............................................... 173 6.3 T E L N E T协议和服务................................................. 174 6 . 3 . 1远程登录的基本概念........................................... 174 • VIII • 目录 6 . 3 . 2使用T E L N E T协议进行远程登录的工作过程...................... 174 6.3.3 T E L N E T 协议................................................. 174 6.4 N F S 协议和服务......................................................176 6.4.1 安装N F S服务器和客户端...................................... 176 6 . 4 . 2服务器端的设定................................................176 6 . 4 . 3客户端的操作................................................. 177 6.4.4 showmount 命令................................................177 6 . 5 自定义网络服务..................................................... 177 6.5.1 xinetd/inetd....................................................178 6.5.2 xinetd月艮务配置................................................178 6 . 5 . 3自定义网络服务............................................... 179 6.6 小结................................................................180 第7 章T C P 网络编程基础...............................................181 7.1 套接字编程基础知识................................................. 181 7.1.1 套接字地址结构................................................181 7 . 1 . 2用户层和内核层交互过程....................................... 183 7.2 T C P 网络编程流程................................................... 184 7.2.1 T C P网络编程架构............................................. 184 7 . 2 . 2创建网络插口函数socket()...................................... 186 7.2.3 绑定一个地址端口对bind()......................................189 7.2.4 监听本地端口 listen............................................ 192 7.2.5 接受一个网络请求acceptO...................................... 194 7 . 2 . 6连接H 标网络服务器connect()................................... 199 7.2.7 写入数据函数writeO........................................... 200 7 . 2 . 8读取数据函数readO............................................ 201 7 . 2 . 9关闭套接字函数close()......................................... 201 7 . 3 服务器/客户端的简单例子............................................ 202 7.3.1 例子功能描述........................................... ......202 7 . 3 . 2服务器网络程序................................................203 7 . 3 . 3服务器读取和显示字符串....................................... 205 7 . 3 . 4客户端的网络程序............................................. 205 7 . 3 . 5客户端读取和显示字符串....................................... 206 7 . 3 . 6编译运行程序................................................. 206 7 . 4 截取信号的例子..................................................... 207 7.4.1 信号处理..................................................... 207 7.4.2 信号 SIGPIPE..................................................208 7.4.3 信号 SI G INT.................................... •.............. 208 7.5 /J、g ................................................................208 • IX • 第8 章服务器和客户端信息的获取...........................................210 8 . 1 字节序............................................................................................................................210 8 . 1 . 1 大端字节序和小端字节序...............................................................................210 8 . 1 . 2 字节序转换函数................................................................................................212 8.1.3 一个字节序转换的例子......................................... 214 8 . 2 字符串I P地址和二进制IP地址的转换................................. 217 8.2.1 inet_xxx()函数................................................. 217 8.2.2 inet_pton()和 inet_ntop()函数.....................................219 8 . 2 . 3使用8.2.1节地址转换函数的例子............................ .•••••••220 8.2.4 使用函数 inet_pton()和函数 inet—ntop()的例子......................223 8 . 3 套接字描述符判定函数issockettype()................................... 223 8 . 3 . 1进行文件描述符判定的函数issockettypeO.........................224 8.3.2 main()g| 数.................................................... 224 8.4 IP地址与域名之间的相互转换................................................................................. 225 8.4.1 D N S 原理.....................................................225 8 . 4 . 2获取主机信息的函数........................................... 226 8 . 4 . 3使用主机名获取主机信息的例子................................. 228 8 . 4 . 4函数gethostbyname()不可重入的例子............................. 230 8 . 5 协议名称处理函数................................................... 232 8.5.1 xxxprotoxxx()函数............................................. 232 8 . 5 . 2使用协议族函数的例子......................................... 233 8.6 小结................................................................236 第9 章数据的I O和复用....................................................237 9.1 IO 函数.......................................................................................................................... 237 9 . 1 . 1使用recv()函数接收数据........................................237 9 . 1 . 2 使用sendO函数发送数据................................................................................239 9 . 1 . 3 使用readvO函数接收数据..............................................................................240 9 . 1 . 4 使用writev()闲数发送数据.............................................................................240 9 . 1 . 5使用recvmsgO函数接收数据.................................... 242 9 . 1 . 6 使用sendmsgO函数发送数据.........................................................................244 9.1.7 I O函数的比较.................................................246 9.2 使用I O函数的例子.................................................. 246 9 . 2 . 1客户端处理框架的例子......................................... 246 9 . 2 . 2服务器端程序框架............................................. 248 9.2.3 使用 recv()和 send()函数........................................ 249 9.2.4 使用 readv()和 write()函数.......................................251 9.2.5 使用 recvmsgO和 sendmsg()函数..................................253 9.3 10 模型............................................................. 256 9 . 3 . 1阻塞I O模型.................................................. 256 • X • 目录 9 . 3 . 2非阻塞1 0模型................................................ 257 9.3.3 10 复用....................................................... 257 9 . 3 . 4信号驱动I O模型.............................................. 258 9 . 3 . 5异步I O模型.................................................. 258 9.4 select()函数和 pselect()函数............................................ 259 9.4.1 select()闲数.................................................... 259 9.4.2 pselect()函数...................................................261 9.5 poll()函数和 ppoll()函数............................................... 262 9.5.1 poll()函数..................................................... 263 9.5.2 p p o l l O ® ^ .................................................... 264 9 . 6 非阻塞编程.......:.................................................. 264 9 . 6 . 1非阻塞方式程序设计介绍....................................... 264 9 . 6 . 2非阻塞程序设计的例子......................................... 264 9.7 小结................................................................266 第1 0章基于U D P 协议的接收和发送...................................... ,...267 10.1 U D P 编程框架......................................................267 10.1.1 U D P 编程框图................................................ 267 10.1.2 U D P 服务器编程框架.......................................... 269 10.1.3 U D P 客户端编程框架.......................................... 269 10.2 U D P 协议程序设计的常用函数....... :................................270 10.2.1建立套接字socket()和绑定套接字bind()......................... 270 10.2.2 接收数据 recvfrom()/recv()......................................270 10.2.3 发送数据 sendtoO/sendO...............................................................................275 10.3 U D P 接收和发送数据的例子.......................................... 279 10.3.1 U D P 服务器端................................................ 279 10.3.2 U D P 服务器端数据处理........................................280 10.3.3 U D P 客户端..................................................281 10.3.4 U D P 客户端数据处理.......................................... 281 10.3.5 测试 U D P 程序............................................... 282 10.4 U D P 协议程序设计中的几个问题......................................282 10.4.1 U D P 报文丢失数据............................................ 282 10.4.2 U D P 数据发送中的乱序........................................284 10.4.3 U D P 协议中的 connect()函数....................................287 10.4.4 U D P 缺乏流量控制............................................ 287 10.4.5 U D P 协议中的外出网络接口....................................289 10.4.6 U D P 协议中的数据报文截断....................................290 10.5 小结.............................................................. 291 第1 1章高级套接字........................................................ 292 11.1 U N I X 域函数.......................................................292 • XI • 目录 11.1.1 UNIX域函数的地址结构..............................................................................292 1 1 .1 .2套接字函数.................................................................................................... 293 11 . 1 . 3 使用UNIX域函数进行套接字编程............................................................ 293 11.1.4传递文件描述符.............................................. 296 11.1.5 socketpair()闲数............................................................................................. 296 11.1.6传递文件描述符的例子.................................................................................297 11.2 广播............................................................................................................................. 302 11.2.1 广播的IP地址............................................................................................... 302 11.2.2广播与单播的比较......................................................................................... 303 11.2.3 广播的示例.....................................................................................................304 1 1 . 3多播................................................ 11.3.1多播的概念....................... 1 1 .3 .2广域网的多播................... 11.3.3多播的编程....................... 11.3.4 内核中的多播................... 11.3.5 一个多播例子的服务器端 11.3.6 —个多播例子的客户端•••• 1 1 . 4数据链路层访问........................... 11.4.1 SOCK_PACKET 类型…… 11.4.2设置套接U 以捕获链路帧的编程方法............................ 320 11.4.3从套接口读取链路帧的编程方法................................ 321 11.4.4定位IP包头的编程方法....................................... 322 11.4.5定位T C P报头的编程方法..................................... 323 11.4.6定位U D P 报头的编程方法..................................... 325 11.4.7定位应用层报文数据的编程方法................................ 326 11.4.8使用S O C K _ P A C K E T编写A R P 请求程序的例子................. 326 11.5 329 第1 2章套接字选项........................................................330 12.1 获取和设置套接字选项 getsocketopt()/setsocketopt()......................330 12.1.1 getsockopt()函数和 setsocketopt()函数的介绍......................330 12.1.2套接字选项................................ ..................331 12.1.3套接字选项简单示例.......................................... 332 12.2 S O L ^ S O C K E T 协议族选项........................................... 336 12.2.1 S O—B R O A D C A S T 广播选项....................................336 12.2.2 S O—D E B U G 调试选项......................................... 337 12.2.3 S O _ D O N T R O U T E 不经过路由选项............................. 337 12.2.4 S O—E R R O R 错误选项......................................... 338 12.2.5 S O _ K E E P A L I V E 保持连接选项................................. 338 12.2.6 S O L I N G E R缓冲区处理方式选项...............................339 • XII • U录 12.2.7 S O _ O O B I N L I N E带外数据处理方式选项.........................342 12.2.8 S O _ R C V B U F 和 S O一S N D B U F 缓冲区大小选项................... 342 12.2.9 S O _ R C V L O W A T 和 S O _ S N D L O W A T 缓冲区下限选项............ 343 12.2.10 S O _ R C V T I M E O 和 S O _ S N D T I M E O 收发超时选项............... 343 12.2.11 S O _ R E U S E R A D D R 地址重用选项............................. 344 12.2.12 S O—E X C L U S I V E A D D R U S E 端 U 独占选项...................... 344 12.2.13 S 0 _ T Y P E套接字类型选项.................................... 345 12.2.14 SO_BSDCOMPAT 与 BSD 銮接字兼容选项............................................345 12.2.15 S O _ B I N D T O D E V I C E套接字网络接口绑定选项................. 345 12.2.16 S O _ P R I O R I T Y套接字优先级选项............................. 346 12.3 I P P R O T O J P 选项...................................................347 12.3.1 IP-HD RT NCL 选项............................................ 347 12.3.2 IP O P T N I O S 选项............................................ 347 12.3.3 IP_TOS 选项................................................. 347 12.3.4 IP_TTL 选项..................................................347 12.4 IPP RO TO_TCP 选项................................................. 348 12.4.1 T C P _ K E E P A L I V E 选项................... ..................... 348 12.4.2 T C P _ M A X R T 选项............................................ 348 12.4.3 T C P—M A X S E G 选项.......................................... 349 12.4.4 T C P _ N O D E L A Y 和 T C P _ C O R K 选项............................ 349 1 2 . 5使用套接字选项.................................................... 351 12.5.1设置和获取缓冲区大小........................................ 351 12.5.2获取套接字类型的例子........................................ 355 12.5.3使用套接字选项的综合例子.................................... 356 12.6 ioctl()函数.......................................................... 361 12.6.1 ioctl()函数的命令选项......................................... 361 12.6.2 ioctl()函数的 IO 请求.......................................... 363 12.6.3 ioctl()函数的文件请求......................................... 365 12.6.4 ioctl()函数的网络接U 请求：.....................................365 12.6.5使用ioctl()函数对A R P 高速缓存操作........................... 372 12.6.6使用ioct〖()函数发送路由表请求.................................374 12.7 fcntl()函数......................................................... 374 12.7.1 fcntl()函数的选项............................................. 375 12.7.2使用fcntl()函数修改套接字非阻塞属性.......................... 375 12.7.3使用fcntlO函数设置信号属主...................................376 12.8 小结...............................................................376 第13章原始套接字......................................................................................................377 13.1 概述...............................................................377 1 3 . 2原始套接字的创建.................................................. 379 • XIII • 目录 13.2.1 S O C K J I A W 选项............................................. 379 13.2.2 IPJHDR 1NCL 套接字选项......................................379 13.2.3 不需要bindO函数............................................. 380 1 3 . 3原始套接字发送报文................................................ 380 13.4 原始套接字接收报文................................................ 380 1 3 . 5原始套接字报文处理时的结构........................................ 381 13.5.1 1 P头部的结构........................................... ..... 381 13.5.2 I C M P 头部结构............................................... 382 13.5.3 U D P 头部结构................................................ 384 13.5.4 T C P 头部结构................................................ 386 13.6 ping 的例子........................................................ 387 13.6.1 协议格式............................................. •••..... 388 13.6.2 校验和函数.................................................. 389 13.6.3 设置I C M P发送报文的头部.................................... 390 13.6.4剥离I C M P接受报文的头部.................................... 391 13.6.5 计算时间差.................................................. 392 13.6.6发送报文.................................................... 393 13.6.7接收报文.................................................... 394 13.6.8主函数过程.................................................. 395 13.6.9 主函数 main()................................................ 397 13.6.10 编译测试................... ................................ 400 1 3 . 7洪水攻击.......................................................... 400 13.8 I C M P洪水攻击..................................................... 401 13.8.1 I C M P洪水攻击的原理.........................................401 13.8.2 I C M P洪水攻击的例子.........................................401 13.9 U D P 洪水攻市......................................................405 13.10 S Y N 洪水攻击.....................................................409 13.10.1 S Y N 洪水攻击的原理.........................................409 13.10.2 S Y N 洪水攻击的例子.........................................409 13.11 小结............................................................. 413 第1 4章服务器模型选择....................................................414 1 4 . 1循环服务器:........................................................ 414 14.1.1 U D P 循环服务器.............................................. 414 14.1.2 T C P循环服务器.............................................. 417 1 4 . 2简单并发服务器.................................................... 420 14.2.1并发服务器的模型............................................ 420 14.2.2 U D P 并发服务器.............................................. 420 14.2.3 T C P并发服务器.............................................. 423 14.3 T C P的高级并发服务器模型.......................................... 426 . XIV • 目录 14.3.1 单客户端单进程，统一 accept()................................. 426 14.3.2 单客户端单线程，统一accept()................................. 429 1 4.3.3单客户端单线程，各线程独自acceptO，使用互斥锁.............. 431 14.4 I O复用循环服务器..................................................435 14.4.1 I O复用循环服务器模型介绍....................................435 14.4.2 I O复用循环服务器模型的例子..................................436 14.5 440 第1 5章IPv6简介.......................... ...............................441 15.1 IPv4 的缺陷........................................................ 441 15.2 IPv6 的特点........................................................ 442 15.3 IPv6 的地址......................:.................................. 443 15.3.1 IPv6的单播地址.............................................. 443 15.3.2可聚集全球单播地址.......................................... 443 15.3.3 本地使用单播地址............................................ 444 15.3.4 兼容性地址.................................................. 445 15.3.5 IPv6 多播地址................................................ 446 15.3.6 IPv6 任播地址................................................ 446 15.3.7主机的多个IPv6地址......................................... 447 15.4 IPv6 的头部........................................................ 447 15.4.1 IPv6 头部格式........................................ ........ 447 15.4.2 与IPv4头部的对比........................................... 448 15.4.3 IPv6 的 T C P 头部............................................. 449 15.4.4 IPv6 的 U D P 头部............................................. 449 15.4.5 IPv6 的 I C M P 头部............................................ 449 15.5 IPv6运行环境...................................................... 451 15.5.1 加载 IPv6 模块............................................... 451 15.5.2查看是否支持IPv6............................................ 452 15.6 IPv6的结构定义.................................................... 453 15.6.1 IPv6的地址族和协议族........................................453 15.6.2套接字地址结构...............................................453 15.6.3 地址兼容考虑................................................ 455 15.6.4 IPv6 通用地址................................................ 455 15.7 IPv6的套接字函数.................................................. 456 15.7.1 socketO 函数.................................................. 456 15.7.2没有发生改变的函数.......................................... 456 15.7.3 发生改变的函数...............................................457 15.8 IPv6的套接字选项.................................................. 457 15.8.1 IPv6的套接字选项............................................ 457 15.8.2 单播跳限 I P V 6 _ U N I C A S T _ H O P S............................... 459 • XV • 目录 15.8.3发送和接收多播包............................................ 459 15.8.4 IPv6中获得时间戳的ioctl命令................................. 460 15.9 IPv6的库函数...................................................... 460 15.9.1地址转换函数的差异.......................................... 460 15.9.2域名解析函数的差异.......................................... 461 15.9.3 测试宏...................................................... 463 15.10 IPv6的编程的一个简单例子......................................... 463 15.10.1 服务器程序................................................. 464 15.10.2 客户端程序................................................. 465 15.10.3 编译调试................................................... 467 15.11 小结............................................................. 467 第3 篇Linux内核网络编程 第16章Linux内核中网络部分结构以及分布...............................................................470 16.1 概述...............................................................470 16.1.1代码目录分布................................................ 470 16.1.2内核中网络部分流程简介...................................... 472 16.1.3系统提供修改网络流程点...................................... 474 16.1.4 sk_buff 结构..................................................475 16.1.5 网络协议数据结构inet_protosw................................. 478 1 6 . 2软中断C P U 报文队列及其处理....................................... 479 16.2.1 Linux内核网络协议层的层间传递手段— 软中断................ 479 1 6 . 2 . 2网络收发处理软中断的实现机制................................ 481 16.3 socket数据如何在内核中接收和发送...................................482 16.3.1 socket()的初始化.............................................. 482 16.3.2 接收网络数据recv()........................................... 482 16.3.3发送网络数据sendO........................................... 483 16.4 小结...............................................................484 第17章neffilter框架内报文处理.................................................................................485 17.1 netfilter............................................................ 485 17.1.1 netfilter 简介..................................................485 17.1.2 netfilter 框架..................................................486 17.1.3 netfilter 检査时的表格.........;................................487 17.1.4 netfilter 的规则................................................487 17.2 iptables 和 netfilter...................................................488 17.2.1 iptables 简介..................................................488 17.2.2 iptables 的表和链............................................. 488 • XVI • 目录 17.2.3 使用iptables设置过滤规则.....................................489 1 7 . 3内核模块编程...................................................... 492 17.3.1 内核 “Hello, World! ”程序................................... 492 17 . 3 . 2内核模块的基本架构.......................................... 494 1 7 . 3 . 3内核模块加载和卸载过程...................................... 496 1 7 . 3 . 4内核模块初始化和清理函数.................................... 497 1 7 . 3 . 5内核模块初始化和淸理过程的容错处理.......................... 497 1 7 . 3 . 6内核模块编译所需的Makefile.................................. 498 17.4 5 个钩子点......................................................... 499 17.4.1 netfilter 的 5 个钩子,点......................................... 499 17.4.2 N F H O O K 'k .................................................500 17.4.3钩了.的处理规则.............................................. 501 1 7 . 5注册/注销钩子...................................................... 502 17.5.1 结构 nf_hook_ops............................................. 502 17.5.2注册钩子.................................................... 503 17.5.3 注销钩子.................................................... 504 17.5.4注册注销函数................................................ 504 1 7 . 6钩子的简单处理例子................................................ 505 17.6.1 功能描述.................................................... 505 17.6.2 需求分析.................................................... 506 17.6.3 ping回显屏蔽实现............................................ 506 17.6.4禁止向目的IP地址发送数据的实现............................. 506 17.6.5 端口关闭实现................................................ 506 17.6.6动态配置实现................................................ 508 17.6.7可加载内核实现代码.......................................... 509 17.6.8应用层测试代码实现.......................................... 516 17.6.9 编泽运行.................................................... 516 17.7 •点多个钩子的优先级...............................................517 1 7 . 8校验和问题........................................................ 518 17.9 小结.... ...........................................................518 第4篇综合案例 第1 8章一个简单W e b 服务器的例子S H T T P D ............................... 522 18.1 S H T T P D的需求分析................................................ 522 18.1.1 S H T T P D启动参数可动态配置的需求............................ 523 18.1.2 S H T T P D的多客户端支持的需求................................ 524 18.1.3 S H T T P D支持方法的需求...................................... 525 18.1.4 S H T T P D支持的H T T P协议版本的需求.......................... 526 • XVII • 0 录 18.1.5 S H T T P D支持头部的需求...................................... 527 18.1.6 S H T T P D 定位 URI 的需求......................................527 18.1.7 S H T T P D 支持 CGI 的需求......................................528 18.1.8 S H T T P D错误代码的需求............... ....................... 529 18.2 S H T T P D的模块分析和设计.......................................... 530 18.2.1 S H T T P D 的主函数............................................ 530 18.2.2 S H T T P D命令行解析的分析设计................................ 531 18.2.3 S H T T P D配置文件解析的分析设计.............................. 532 18.2.4 S H T T P D的多客户端支持的分析设计............................ 534 18.2.5 S H T T P D头部解析的分析设计.................................. 536 18.2.6 S H T T P D 对 URI 的分析设计....................................537 18.2.7 S H T T P D支持方法的分析设计.................................. 537 18.2.8 S H T T P D支持C G I的分析设计................................. 538 18.2.9 S H T T P D错误处理的分析设计................................. <540 18.3 S H T T P D各模块的实现.................................... :......... 542 18.3.1 S H T T P D命令行解析的实现.................................... 543 18.3.2 S H T T P D文件配置解析的实现.................................. 545 18.3.3 S H T T P D的多客户端支持的实现................................ 547 18.3.4 S H T T P D所请求U R I解析的实现............................... 551 18.3.5 S H T T P D方法解析的实现...................................... 552 18.3.6 S H T T P D响应方法的实现...................................... 552 18.3.7 S H T T P D 支持 CGI 的实现......................................556 18.3.8 S H T T P D支持H T T P协议版本的实现............................ 559 18.3.9 S H T T P D内容类型的实现...................................... 559 18.3.10 S H T T P D错误处理的实现..................................... 561 18.3.11 S H T T P D生成目录下文件列表文件的实现.......................563 18.3.12 S H T T P D主函数的实现....................................... 565 18.4 S H T T P D的编译、调试和测试........................................ 566 18.4.1 建立源文件...................................................566 18.4.2 制作 Makefile.................................................566 18.4.3 制作执行文件........................................:....... 567 18.4.4使用不同的浏览器测试服务器程序.............................. 567 18.5 小结...............................................................568 第1 9章一个简单网络协议栈的例子S I P ......................................569 19.1 S I P网络协议找的功能描述........................................... 569 19.1.1 SIP网络协议栈的基本功能描述................................ 570 19.1.2 S I P网络协议栈的分层功能描述................................ 570 19.1.3 S I P网络协议栈的用户接U 功能描述............................ 571 19.2 S I P网络协议找的架构............................................... 571 • XVIII • S 录 19.3 S I P网络协议找的存储区缓存......................................... 572 19.3.1 SIP存储缓冲的结构定义....................................... 573 19.3.2 SIP存储缓冲的处理函数....................................... 577 19.4 S I P网络协议找的网络接U 层......................................... 579 19.4.1 SI P网络接U 层的架构......................................... 579 19.4.2 S I P网络接U 层的数据结构...................................•.••■580 19.4.3 S I P网络接口层的初始化函数...................................581 19.4.4 S I P网络接口层的输入函数.....................................583 19.4.5 S I P网络接口层的输出函数.....................................586 19.5 S I P网络协议栈的A R P 层............................................ 588 19.5.1 SIP地址解析层的架构......................................... 588 19.5.2 SIP地址解析层的数据结构.....................................588 19.5.3 SIP地址解析层的映射表.......................................590 19.5.4 SIP地址解析层的A R P 映射表维护函数......................... 591 19.5.5 SIP地址解析层的A R P 网络报文构建函数.... :..................593 19.5.6 S1P地址解析层的A R P 网络报文收发处理函数................... 595 19.6 S I P网络协议栈的IP层.............................................. 598 19.6.1 S I P网际协议层的架构......................................... 598 19.6.2 S I P网际协议层的数据结构.....................................599 19.6.3 S I P网际协议层的输入函数.....................................601 19.6.4 S I P网际协议层的输出函数.....................................605 19.6.5 S I P网际协议层的分片函数.....................................606 19.6.6 S I P网际协议层的分片组装函数................................ 607 19.7 S I P网络协议栈的I C M P层........................................... 611 19.7.1 SIP控制报文协议的数据结构.................................. 611 19.7.2 SIP控制报文协议的协议支持...................................612 19.7.3 SIP控制报文协议的输入函数.................................. 613 19.7.4 SIP控制报文协议的回显应答函数.............................. 614 19.8 S I P网络协议栈的U D P 层............................................ 615 19.8.1 SIP数据报文层的数据结构.....................................615 19.8.2 SIP数据报文层的控制单元.....................................615 19.8.3 SIP数据报文层的输入函数.....................................617 19.8.4 SIP数据报文层的输出函数.....................................618 19.8.5 SIP数据报文层的建立函数.....................................618 19.8.6 SIP数据报文层的释放函数.....................................619 19.8.7 SIP数据报文层的绑定函数.....................................620 19.8.8 SIP数据报文层的发送数据闲数.................................621 19.8.9 SIP数据报文层的校验和计算...................................622 19.9 S I P网络协议栈的协议无关层......................................... 623 19.9.1 SIP协议无关层的系统架构.....................................623 • XIX • 目录 19.9.2 SIP协议无关层的函数形式.....................................624 19.9.3 S1P协议无关层的接收数据函数................................ 624 19.10 S I P网络协议栈的B S D 接U 层....................................... 625 19.10.1 S IP用户接口层的架构........................................ 625 19.10.2 SIP用户接n 层的套接字建立函数............................. 626 19.10.3 SIP用户接M 层的套接字关闭函数............................. 627 19.10.4 SIP用户接U 层的套接字绑定函数............................. 627 19.10.5 SIP用户接丨」层的套接字连接函数............................. 628 19.10.6 SIP用户接U 层的套接字接收数据函数......................... 628 19.10.7 SIP用户接口层的发送数据函数................................629 19.11 S I P网络协议找的编译.............................................. 630 19.11.1 SI P的文件结构.............................................. 630 19.11.2 SIP 的 Makefile.............................................. 631 19.11.3 SIP的编译运行.............................................. 631 19.12 小结..............................................................631 第2 0章一个简单防火墙的例子S I P F W .......................................633 20.1 S I P F W防火墙的功能描述............................................ 633 20.1.1 S I P F W防火墙对主机进行网络数据过滤的功能描述............... 633 20.1.2 S I P F W防火墙用户设置防火墙规则的功能描述................... 634 20.1.3 S I P F W防火墙配K 文件等附加功能的功能描述................... 634 20.2 SIPFW 需求分析.................................................... 634 20.2.1 S I P F W防火墙条件和动作......................................635 20.2.2 S I P F W防火墙支持过滤的类型和内容........................... 635 20.2.3 S I P F W防火墙过滤的方式和动作............................... 638 20.2.4 S I P F W防火墙的配置文件...................................... 640 20.2.5 S I P F W防火墙命令行配置格式..................................640 20.2.6 S I P F W防火墙的规则文件格式..................................642 20.2.7 S I P F W防火墙的日志文件数据格式............................. 643 20.2.8 S I P F W防火墙构建所采用的技术方案........................... 644 2 0 . 3使用netlink进行用户空间和内核空间数据交S ......................... 645 20.3.1 netlink的用户空间程序设计.................................... 645 20.3.2 netlink 的内核空间 A P I........................................ 648 2 0 . 4使用proc进行内存数据用户空间映射..................................650 20.4.1 proc虚拟文件系统的结构...................................... 650 20.4.2 创建proc虚拟文件........................................... 651 2 0 . 4 . 3删除proc虚拟文件........................................... 652 20.4.4 proc文件的写函数............................................ 652 20.4.5 proc文件的读函数............................................ 653 2 0 . 5内核空间的文件操作函数............................................ 654 • XX • 20.5.1 内核空间的文件结构.......................................... 654 20.5.2 内核空间的文件建立操作...................................... 655 20.5.3 内核空间的文件读写操作...................................... 656 20.5.4 内核空间的文件关闭操作...................................... 657 20.6 S I P F W防火墙的模块分析和设计......................................657 20.6.1 S I P F W防火墙的总体架构...................................... 657 20.6.2 S I P F W防火墙的用户命令解析................................. 660 20.6.3 S I P F W用户空间与内核空间的交互............................. 663 20.6.4 S I P F W防火墙内核链h 的规则处理............................. 666 20.6.5 S I P F W防火墙的P R O C 虑拟文件系统........................... 668 20.6.6 S I P F W防火墙的配置文件和口志文件处理....................... 669 20.6.7 S I P F W防火墙的过滤模块设计................................. 671 20.7 S I P F W防火墙各功能模块的实现......................................673 20.7.〗 S I P F W防火墙的命令解析代码................................. 674 20.7.2 S I P F W防火墙的过滤规则解析模块代码......................... 678 20.7.3 S I P F W防火墙的网络数据拦截模块代码......................... 680 20.7.4 S I P F W防火墙的P R O C 虚拟文件系统........................... 681 20.7.5 S I P F W防火墙对配置文件的解析............................... 683 20.7.6 S I P F W防火墙内核模块初始化和退出........................... 684 2 0 . 7 . 7用户空间处理主函数.......................................... 685 20.8 编译、调试和测试.......................... ....................... 686 2 0 . 8 . 1用户程序和内核程序的Makefile................................ 686 20.8.2 编译及运行.................................................. 687 2 0 . 8 . 3下发过滤规则，测试过滤结果.................................. 688 20.9 小结.............................................................. 690

電腦科技雜誌 PC World 電腦硬體評比

世界知名資訊科技雜誌 PC WORLD 2016年一月份

1 Getting started........................................................................................................................7 1.1 Installing Basic4Android and Android SDK ....................................................................7 1.1.1 Install and configure Basic4Android ........................................................................9 1.2 Installing Android Emulator........................................................................................... 10 2 My first program (MyFirstProgram.b4a)............................................................................... 15 3 Second program (SecondProgram.b4a) ................................................................................. 33 4 The IDE ............................................................................................................................... 46 4.1 Menu and Toolbar.......................................................................................................... 47 4.1.1 Toolbar .................................................................................................................. 47 4.1.2 File menu ............................................................................................................... 48 4.1.3 Edit menu............................................................................................................... 48 4.1.4 Project menu .......................................................................................................... 49 4.1.5 Tools menu ............................................................................................................ 50 4.2 Code area....................................................................................................................... 52 4.2.1 Undo – Redo ............................................................................................. 52 4.2.2 Collapse a subroutine ............................................................................................. 52 4.2.3 Collapse a Region .................................................................................................. 53 4.2.4 Collapse the whole code......................................................................................... 54 4.2.5 Commenting and uncommenting code ...................................................... 55 4.2.6 Bookmarks .................................................................................. 55 4.2.7 Indentation ............................................................................................... 56 4.2.8 Autocomplete ................................................................................................. 58 4.2.9 Jump to a subroutine .............................................................................................. 60 4.2.10 Highlighting occurences of words .......................................................................... 61 4.2.11 Debugging ............................................................................................................. 62 4.2.12 Breakpoints............................................................................................................ 64 4.3 Tabs.............................................................................................................................. 67 4.3.1 Module and subroutine lists ............................................................... 67 4.3.2 Files ....................................................................................................... 68 4.3.3 Logs ...................................................................................................... 69 4.3.4 Libs ........................................................................................................ 70 5 Screen sizes and resolutions................................................................................................... 71 5.1 Specilal functions like 50%x, 50dip ............................................................................. 76 5.1.1 PerXToCurrent, PerYToCurrent - 50%x................................................................. 76 5.1.2 DipToCurrent - 50dip............................................................................................. 76 6 The Emulator........................................................................................................................ 77 6.1 Launch an Emulator....................................................................................................... 77 6.2 Generate a new Emulator............................................................................................... 79 6.3 Emulator problems......................................................................................................... 81 6.3.1 Process timeout ...................................................................................................... 82 7 B4A Bridge ........................................................................................................................... 83 8 The Designer ......................................................................................................................... 86 8.1 The menu....................................................................................................................... 87 8.1.1 File menu ............................................................................................................... 87 8.1.2 AddView menu ...................................................................................................... 87 8.1.3 The Tools menu ..................................................................................................... 88 8.2 Tools ............................................................................................................................. 89 8.2.1 Generate Members ................................................................................................. 89 8.2.2 BringTo Front ........................................................................................................ 90 Table of contents 3 Basic4Android Beginner's Guide 8.2.3 Duplicate Selected View ........................................................................................ 90 8.2.4 Remove Selected View .......................................................................................... 91 8.2.5 Change grid............................................................................................................ 91 8.2.6 Connect device or emulator.................................................................................... 92 8.3 General settings ............................................................................................................. 92 8.4 Image files ..................................................................................................................... 93 8.5 Properties list ................................................................................................................. 94 8.6 Layout variants .............................................................................................................. 96 8.7 The Abstract Designer ................................................................................................. 101 8.7.1 The menu ............................................................................................................. 102 8.7.2 Example............................................................................................................... 103 8.8 Adding views by code.................................................................................................. 106 9 Process and Activity life cycle............................................................................................. 109 10 Variables and objects....................................................................................................... 113 10.1 Variable Types............................................................................................................. 113 10.2 Names of variables ...................................................................................................... 114 10.3 Declaring variables ...................................................................................................... 114 10.3.1 Simple variables................................................................................................... 114 10.3.2 Array variables..................................................................................................... 115 10.3.3 Array of views (objects) ....................................................................................... 117 10.3.4 Type variables...................................................................................................... 118 10.4 Casting ........................................................................................................................ 119 10.5 Scope.......................................................................................................................... 120 10.5.1 Process variables.................................................................................................. 120 10.5.2 Activity variables ................................................................................................. 120 10.5.3 Local variables..................................................................................................... 120 10.6 Tips ............................................................................................................................. 121 11 Modules.......................................................................................................................... 122 11.1 Activity modules.......................................................................................................... 123 11.2 Code modules .............................................................................................................. 124 11.3 Service modules........................................................................................................... 125 12 Example programs........................................................................................................... 126 12.1 User interfaces ............................................................................................................. 126 12.1.1 Menu example (UserInterfaceMenu.b4a)............................................................. 127 12.1.2 TabHost example (UserInterfaceTabHost.b4a) ................................................... 128 12.1.3 Button toolbox example (UserInterfaceButtonToolbox.b4a)................................ 129 12.2 Program with 3 Activities (ThreeActivityExample.b4a) .............................................. 130 12.3 ScrollView examples ................................................................................................... 137 12.3.1 ScrollView example program............................................................................... 138 13 SQLite Database.............................................................................................................. 149 13.1 SQLite Database basics................................................................................................ 149 13.2 SQLite Database example program.............................................................................. 152 13.2.1 Editing ................................................................................................................. 154 13.2.2 Filtering ............................................................................................................... 155 13.2.3 Beginning of the code .......................................................................................... 156 13.2.4 Read the table ...................................................................................................... 159 13.2.5 Modify a data set.................................................................................................. 161 13.2.6 Add a data set to the database............................................................................... 162 13.2.7 Delete a data set from the database....................................................................... 164 13.2.8 Positioning of the EditText Views in the Edit panel.............................................. 165 14 GPS................................................................................................................................ 166 14.1 GPS Library................................................................................................................. 166 14.1.1 GPS Object .......................................................................................................... 166 Table of contents 4 Basic4Android Beginner's Guide 14.1.2 GPS Satellite........................................................................................................ 167 14.1.3 GPS Location....................................................................................................... 167 14.2 GPS Program............................................................................................................... 168 14.2.1 General explanations............................................................................................ 171 14.2.2 Setup.................................................................................................................... 172 14.2.3 GPS display ......................................................................................................... 173 14.2.4 Satellites .............................................................................................................. 174 14.2.5 Map display ......................................................................................................... 175 14.2.6 GPS path.............................................................................................................. 177 14.3 GPS Program Code...................................................................................................... 181 14.3.1 Initialization of the GPS....................................................................................... 182 14.3.2 Button with tooltip ............................................................................................... 183 14.3.3 Button with tooltip and additional buttons ............................................................ 186 14.3.4 GPS Calculate distance scales .............................................................................. 189 14.3.5 Drawing GPS position.......................................................................................... 190 15 Basic language................................................................................................................. 193 15.1 Program flow............................................................................................................... 193 15.1.1 Process_Globals routine ....................................................................................... 193 15.1.2 Globals routine..................................................................................................... 194 15.1.3 Activity_Create (FirstTime As Boolean) routine .................................................. 194 15.1.4 Activity_Resume routine...................................................................................... 194 15.1.5 Activity_Pause (UserClosed As Boolean) routine................................................. 194 15.2 Expressions.................................................................................................................. 196 15.2.1 Mathematical expressions .................................................................................... 196 15.2.2 Relational expressions.......................................................................................... 197 15.2.3 Boolean expressions............................................................................................. 197 15.3 Conditional statements................................................................................................. 197 15.3.1 If – Then – End If................................................................................................. 198 15.3.2 Select – Case........................................................................................................ 199 15.4 Loop structures ............................................................................................................ 201 15.4.1 For – Next............................................................................................................ 201 15.4.2 Do - Loop ............................................................................................................ 202 15.5 Subs............................................................................................................................ 203 15.5.1 Declaring ............................................................................................................. 203 15.5.2 Calling a Sub........................................................................................................ 203 15.5.3 Naming ................................................................................................................ 203 15.5.4 Parameters ........................................................................................................... 204 15.5.5 Returned value ..................................................................................................... 204 15.6 Events......................................................................................................................... 205 15.7 Libraries ...................................................................................................................... 208 15.7.1 Standard libraries ................................................................................................. 208 15.7.2 Additional libraries folder .................................................................................... 208 15.7.3 Error message "Are you missing a library reference?" .......................................... 209 15.8 String manipulation ..................................................................................................... 210 15.9 Timers ......................................................................................................................... 211 15.10 Files......................................................................................................................... 212 15.10.1 File object ........................................................................................................ 212 15.10.2 TextWriter........................................................................................................ 214 15.10.3 TextReader....................................................................................................... 215 15.10.4 Text encoding................................................................................................... 216 16 Graphics / Drawing.......................................................................................................... 218 16.1 Overview..................................................................................................................... 218 16.2 Drawing test programs................................................................................................. 220 Table of contents 5 Basic4Android Beginner's Guide 16.2.1 Drawing rotating bitmaps / RotatingNeedle.......................................................... 220 16.2.2 Simple draw functions.......................................................................................... 225 17 Widgets, home screen widgets ......................................................................................... 234 17.1 Widgets Part I............................................................................................................. 234 17.2 Widgets Part II............................................................................................................ 237 18 B4A Keywords................................................................................................................ 240 18.1 Bit ............................................................................................................................... 240 18.2 DateTime..................................................................................................................... 241 18.3 Exception..................................................................................................................... 244 18.4 Keywords .................................................................................................................... 245 18.5 LayoutValues............................................................................................................... 257 18.6 String.......................................................................................................................... 258 18.7 StringBuilder ............................................................................................................... 260 18.8 Timer.......................................................................................................................... 262 19 Views .............................................................................................................................. 264 19.1 Activity....................................................................................................................... 264 19.2 Button......................................................................................................................... 268 19.3 CheckBox.................................................................................................................... 271 19.4 EditText....................................................................................................................... 274 19.5 ImageView .................................................................................................................. 279 19.6 Label ........................................................................................................................... 282 19.7 ListView...................................................................................................................... 285 19.8 Panel........................................................................................................................... 290 19.9 ProgressBar ................................................................................................................. 293 19.10 RadioButton............................................................................................................. 295 19.11 ScrollView............................................................................................................... 298 19.12 SeekBar ................................................................................................................... 301 19.13 Spinner .................................................................................................................... 304 19.14 TabHost ................................................................................................................... 308 19.15 ToggleButton........................................................................................................... 312 19.16 View........................................................................................................................ 315 19.17 WebView................................................................................................................. 317 20 VB6 versus B4A.............................................................................................................. 321 21 FAQ ............................................................................................................................... 326 21.1 "Please save project first" message............................................................................. 326 21.2 "Are you missing a library reference" message........................................................... 326 21.3 How loading / updating a library.................................................................................. 327 21.4 When do we need to 'Initialize' and when not............................................................. 327 21.5 Split a long line into two or more lines......................................................................... 328 21.6 Avoid closing an application........................................................................................ 328 21.7 Unwanted events like Click, Touch or others ............................................................... 329 21.8 Adding a Menu item.................................................................................................... 329 21.9 How do I remove a View with the Designer................................................................. 330 21.10 "Process has timeout" message............................................................................... 330 21.11 Getting a picture from the gallery............................................................................. 331 21.12 How to delete x.bal files or other files from a project ............................................. 331 21.13 Block a screen orientation ........................................................................................ 332 21.14 Close second Activity .............................................................................................. 333 21.15 Taking a screenshot programaticaly ......................................................................... 333 21.16 After compiling, where are the files ......................................................................... 333 21.17 Run an application from another one........................................................................ 334 21.18 How to pass an Array to a Sub ................................................................................. 334 21.19 Getting language and country from device ............................................................... 335 Table of contents 6 Basic4Android Beginner's Guide 22 Glossary .......................................................................................................................... 336

世界知名電腦科技雜誌 PC WORLD 2015 12月份

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CHAPTER 1: INTRODUCTION TO RASPBERRY PI THE EVOLUTION OF RASPBERRY PI 2 THE UNIQUE FEATURES: MODEL A MODEL A+ MODEL B MODEL B+ SHOULD YOU BUY THE LATEST RASPBERRY PI 2, IF YOU HAVE PREVIOUS MODELS? GETTING STARTED BOOTING AND CONNECTIONS A FEW THINGS YOU NEED TO KNOW STARTING THE DEVICE CHAPTER 2: SOME OF THE COMMON PI 2 PROJECTS MEDIA CENTER WITH XBMC AND RASPBERRY PI 2 MINIATURE BALLOON MINECRAFT SERVER RUNNING ON RASPBERRY PI 2 CHAPTER 3: USING THE RASPBERRY PI 2FOR YOUR PROJECT DIFFERENCES BETWEEN THE ARDUINO BOARD AND RASPBERRY PI THINGS THAT WILL HELP YOUR PROJECT TO BE SUCCESSFUL MODEL OF YOUR RASPBERRY MEMORY CARD POWER SOURCE AND MICRO USB CABLE USE A CASE VERSATILE AND FLEXIBLE CONCLUSION DID YOU ENJOY THIS BOOK

世界知名資訊科技雜誌 電腦世界 PC WORLD

PC WORLD 2015 七月份版 國外知名 IT 雜誌

IT 雜誌 PC WORLD 2015 五月份版

國外知名電腦雜誌 PC WORLD 2015 3月份

Stewart Watkiss graduated from the University of Hull, United Kingdom, with a masters degree in electronic engineering. He has been a fan of Linux since first installing it on a home computer during the late 1990s. While working as a Linux system administrator, he was awarded Advanced Linux Certification (LPIC 2) in 2006, and created the Penguin Tutor website to help others learning Linux and working toward Linux certification (www.penguintutor.com). Stewart is a big fan of the Raspberry Pi. He owns several Raspberry Pi computers that he uses to help to protect his home (Internet filter), provide entertainment (XBMC), and teach programming to his two children. He also volunteers as a STEM ambassador, going into local schools to help support teachers and teach programming to teachers and children.

IEEE Software mobil and cloud system

FRONTSIDE — P. 3 News, product release information, and stats from the tech industry. HEAVY GEAR — P. 13 The latest PC hardware is here: reviews, product profiles, and category roundups. HARD HAT AREA — P. 39 CPU’s Mad Reader Mod winner, LAN party coverage, and in-depth looks at the latest and greatest hardware and technology. LOADING ZONE — P. 60 Software projects, betas, updates, and more. DIGITAL LIVING — P. 69 Trends and leisure, news from around the web, tech company interviews, and more

網頁設計 網頁布局 Introduction Take the book you’re holding in your hands right now and resize it so that it’s easier to read Don’t feel bad I’ve given you an impossible exercise but I promise the book will be filled with practical instead of ridiculous exercises from here on out That’s because we’re going to be talking about web design where we’re not constrained by the physical limitations of print on paper Though both web and print offer opportunities for beautiful and effective design each has its own strengths and limitations To create successful web designs you need to design to the medium’s strengths instead of fighting against them One of these strengths is flexibility Here I’m using flexible in the broadest sense built to adapt to an infinite number of viewing scenarios Users are ultimately in control of their experience of web sites to a degree beyond what’s possible with any other medium They get to choose whether or not they do so consciously and willingly the type of device they view web pages on how big their screens and windows are their text sizes and fonts whether to view still images or Flash animations Really savvy users can even set up their own style sheets to slightly or dramatically change the visual appearance of the sites they view Some users don’t even “view” web sites they may hear or feel them instead The web medium is also flexible in the narrower sense of the word web pages and content are not fixed at one particular size By default web pages can change in width and height to accommodate the differing text sizes and window widths of the users This is true of both web pages built with divs and CSS and those built with tables Fixed width web pages pages that are set at a certain number of pixels decided by the designer override some of the web’s natural flexibility There are certainly good reasons to build fixed width designs as you’ll learn in Chapter 1 But the alternatives to fixed width design can offer a lot of benefit and may work for more types of sites than you may think Liquid or fluid sites which resize based on the user’s window size are one alternative Elastic sites which resize based on the user’s text size are another Both types of designs take advantage of the web’s natural flexibility and when done well can greatly improve the user’s experience on your site all">網頁設計 網頁布局 Introduction Take the book you’re holding in your hands right now and resize it so that it’s easier to read Don’t feel bad I’ve given you an impossible exercise but I promise the book will be filled with practical instead of ridiculous exercises from here on [更多]

python Part I. Getting Started 1. A Python Q&A Session . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Why Do People Use Python? 3 Software Quality 4 Developer Productivity 5 Is Python a “Scripting Language”? 5 OK, but What’s the Downside? 7 Who Uses Python Today? 7 What Can I Do with Python? 9 Systems Programming 9 GUIs 9 Internet Scripting 10 Component Integration 10 Database Programming 11 Rapid Prototyping 11 Numeric and Scientific Programming 11 Gaming, Images, Serial Ports, XML, Robots, and More 12 How Is Python Supported? 12 What Are Python’s Technical Strengths? 13 It’s Object-Oriented 13 It’s Free 13 It’s Portable 14 It’s Powerful 15 It’s Mixable 16 It’s Easy to Use 16 It’s Easy to Learn 17 It’s Named After Monty Python 17 How Does Python Stack Up to Language X?

电脑世界杂志 PCworld 2017 2月份版

PCWORLD 电脑世界杂志 2017 1月份 电脑硬体评比

目 录 第1篇求职准备和技巧 第1章了解面试——通过面试抓住机会..........................................2 1.1选择自己的应聘职位范围............................................................2 1.1.1针对初级C/Of•工程师职位...................................................2 1.1.2针对中、高级C/OH■开发丁程师职位...........................................3 1.1.3 C/OH■的职位划分............................................................4 1.2制作专业化的应聘简历..............................................................5 1.2.1简历的组成.................................................................5 1.2.2 —个简历的样本.............................................................6 1.4箪握应聘的流程一一步步为营........................................................9 1.5投递简历..........................................................................10 1.5.1招聘网站投递...............................................................10 1.5.2 E-mail 投递................................................................11 1.5.3如何面对招聘会.............................................................12 1.6面试+笔试+上机考试...............................................................13 1.6.1 酿.......................................................................13 1.6.2 笔试.......................................................................14 1.6.3 上机考试...................................................................15 1.7面试后的终结邮件..................................................................16 第2章英文面试教学视频：60分钟）.....................................18 2.1英文面试过程和技巧................................................................18 2.2关于工作..........................................................................19 面试题 1 What salary would you expect for this job.....................................19 面试题 2 What new skills or ideas do you bring to the job that other candidates aren't likely to offer......................................................20 面试题 3 What would you like to accomplish that you weren't able to accomplish in your last position.......................................................20 面试题 4 How have your career motivations changed over the past few years................20 面试题 5 Why should I hire you.....................................................21 面试题 6 What are your key skills...................................................21 面试题 7 What are your strengths...................................................22 而试题 8 How is your experience relevant to this job....................................22 面试题 9 What skills do you think are most critical to this job.............................23 面试题 10 What skills would you like to develop in this job...............................23 面试题 11 If you had to stay in your current job, what would you spend more time on? Why....24 面试题 12 How could you enrich your current job.......................................24 2.3关于个人.........................................................................24 面试题 13 Why do you want to work here............................................25 曲试题 14 Do you believe you’re overqualified for this position..........................25 面试题 15 Tell me about a time you didn’t perform to your capabilities....................26 面试题 16 How do you manage stress in your daily work................................26 面试题 17 Considering your own resume,what are your weaknesses in relation to this job.....26 面试题 18 Describe your working relationship with your colleagues.......................27 面试题 19 Describe your personality beneath the professional image.......................27 向试题 20 How will you complement this department...................................27 2.4关于发展..........................................................................28 面试题 21 Tell me what you learned from a recent book.................................28 面M题 22 What’s your most productive or ideal work setting.............................28 而试题 23 Where do you want to be in five years.......................................29 面试题 24 What are your aspirations beyond this job....................................29 ift 试题 25 How long do you think you'd continue to grow in this job......................29 由试题 26 What do you reasonably expect to earn within five years........................30 第3章电话面试（^1教学视频：13分钟）...........................................31 3.1电话面试简介......................................................................31 3.2如何准备电话面试..................................................................32 3.3电话面试常见问题.................................................................33 面试题27为什么想进本公司......................................................33 面试题28你最#欢这份工作的哪一点或者哪些方面.................................33 面试题29请描述一下你自己的优缺点..............................................34 面试题30你对本公司的了解有多少................................................34 面试题3丨对这份工作的期望与目标何在............................................34 面试题32你为什么要离职........................................................34 面试题33选择这份工作的原因是什么..............................................35 面试题34你认为相关产业的发展会如何............................................35 面试题35你希望的待遇为多少....................................................35 面试题36在工作中学习到了些什么................................................35 _______________________________________________________________UM____________________________________ ___________________________ • VI • 目录 第2篇C/C++基础知识 第4章C/C++语言基础（尤*教学视频：50分钟）...................................38 4.1基本数据类型.....................................................................38 面试题37 C++中有哪几种基本数据类型............................................38 面试题38整型有哪几种形式？各种形式有什么区别.................................39 面试题39 C++中有哪些常量......................................................40 面试题40常量与变量有哪些区别.................................................42 4.2操作符...........................................................................42 面试题41操作符有哪些分类......................................................43 面试题42操作符优先级对运算结果有什么影响.....................................43 面试题43逻辑操作与其他操作的关系.............................................45 面试题44自增自减前操作与后操作的区别.........................................46 面试题45指针&增自减有什么不同...............................................47 4.3变量.............................................................................47 面试题46什么是左值和右值......................................................48 面试题47什么是变童............................................................48 面试题48变量有哪几种初始化方式................................................49 面试题49变量默认初始化有什么规则..............................................50 面试题50仆么是变M的声明和定义................................................50 面试题51 C++中有哪几种作用域.............................................51 面试题52局部变量与嵌套的作用域................................................52 面试题53变景有哪几种存储类型..................................................53 4.4 弓 |fli..............................................................................53 面试题54什么是引用............................................................54 面试题55 如何使用const引用与非const引用........................................54 4.5 C与C*H•的联系...................................................................55 面试题56 C与C++有什么区别..............................................55 4.6编程规范.........................................................................55 面试题57什么是匈牙利命名法....................................................55 面试题58变黄有什么命名规则....................................................56 第5章流程控制教学视频：24分钟）..........................................58 5.1条件语句.........................................................................58 面试题59条件语句有哪几种形式..................................................58 面试题60条件语句如何嵌套？如何匹配else子句...................................59 5.2循环语句.........................................................................61 面试题61 for循环语句的计算顺序是什么..........................................61 面试题62 while循环与do-while循环有什么区别......................................62 • VII • 面试题63典型循环语句..........................................................64 面试题64 break语句与continue语句有什么区别.....................................64 5.3 switch 语句.......................................................................66 面试题65 switch语句的执行顺序是什么.............................................66 面试题66如何在switch语句内部定义变量.........................................67 5.4 細.............................................................................68 面试题67什么是递归............................................................68 面试题68汉诺塔问题............................................................69 第6章输入输出教学视频：15分钟）.....................................73 6.1 输入流与输出流...................................................................73 面试题69什么是标准输入输出流..................................................73 面试题70如何®载输入输出......................................................74 6.2文件输入/输出.....................................................................75 面试题71如何读取一个文件......................................................75 面试题72文件输入输出有哪几种方式.............................................76 6.3异常与错误.......................................................................77 面试题73什么是异常............................................................77 面试题74如何抛出和捕捉异常....................................................78 第7章预处理以及内存管理教学视频：28分钟）...............................80 7.1 宏定义...........................................................................80 面试题75宏定义与操作符的区别..................................................80 而试题76宏定义如何展开........................................................81 7.2 include 的使用.....................................................................82 面试题77 include有哪几种使用方式？有什么区别..................................82 面试题78包含头文件时如何査找头文件...........................................83 7.3 内存分配.........................................................................83 面试题79 C++中各数据类型的长度................................................84 面试题80如何分配和释放存储空间................................................84 7.4虚函数与纯虚函数.................................................................85 由试题81 虚函数与纯虚函数的区别...............................................85 面试题82如何使用纯虚函数......................................................86 第8章指针（教学视频•• 60分钟）...........................................88 8.1指针概述.........................................................................88 面试题83什么是指针............................................................88 而试题84如何初始化指针并对其陚值.............................................89 面试题85是否可以确定指针指向一个对象.........................................90 面试题86如何使用指针操作数组.................................................90 面试题87 const对象的指针和const指针的区别.....................................91 • VIII 面试题88数组指针与指针数组的区别.............................................92 8.2函数指针.........................................................................93 面试题89什么是函数指针？如何使用函数指针.....................................93 面试题90指针函数和函数指针的区别.............................................95 8.3 this 指针..........................................................................96 面试题91什么是this指针........................................................96 面试题92何时使用this指针......................................................％ 8.4引用与值传递..................................................:..................97 面试题93什么是值传递..........................................................97 面试题94引用与值传递的区别...................••.................................98 面试题95指针和引用有什么区别..................................................99 第9章面向对象与类■教学视频：48分钟）................................1〇〇 9.1 面向对象的基本知识..............................................................100 面试题96面向对象与面向过程的区别.............................................100 面试题97面向对象的特征是什么.................................................101 9.2 ^...............................................................................101 面试题98类和结构有什么区别...................................................102 面试题99抽象类及它的用途.....................................................103 9.3 类成员...........................................................................105 面试题100成员变萤有哪些访问方式..............................................105 面试题101成员变量有哪些访问控制方式..........................................105 面试题102 如何访问静态成员....................................................106 9.4 0S.............................................................................108 面试题103什么是多态？多态的作用..............................................108 面试题104在OH•中如何实现多态................................................109 第10章继承教学视频•• 44分钟）.............................................113 10.1 縣............................................................................113 面试题105派生类与基类的转换..................................................113 面试题106什么是虚成员？有什么作用............................................115 面试题107构造函数与析构函数的调用时机........................................116 10.2访问控制........................................................................118 面试题108有哪几种继承方式....................................................118 面试题109继承时访问级别如何变化..............................................120 10.3继承时的类作用域................................................................121 面试题110什么时候发生函数覆盖................................................121 面试题111如何访问基类的成员..................................................122 10.4复制构造函数....................................................................123 面试题112什么是深复制与浅复制................................................123 而试题113什么是复制构造函数..................................................124 _______________________________________________________ ____________________________________________________________ • IX • 10.5类型转换构造函数...............................................................125 面试题114类型转换有哪些分类.................................................125 面试题115什么是类型转换构造函数..............................................126 第11章函数（f教学视频：49分钟）.............................................128 11.1函数的定义......................................................................128 面试题116什么是函数..........................................................128 面试题117形参与实参有什么区别................................................129 面试题118 C++支持参数个数不确定的函数吗.....................................130 面试题119什么是内联函数......................................................131 11.2函数参数的传递..................................................................132 面试题120引用形参和非引用形参有什么区别......................................132 面试题121使用引用形参有什么问题..............................................133 面试题122指针形参与引用形参有什么区别........................................134 11.3类成员函数......................................................................135 面试题123什么是类成员函数？有哪些特别的类成员函数...........................135 面试题124什么是静态函数？如何使用静态函数....................................136 面试题125静态函数能访问类的私有成员..........................................137 面试题126 —-个类可以访问另一个类的私有成员吗...................................137 11.4函数重载.......................................................................138 面试题127函数重载与作用域...................................................138 面试题128如何进行函数重载的匹配.............................................139 面试题129函数重载时如何实现实参的类型转换...................................140 第12章模板与STL ( ^教学视频：46分钟）.....................................141 12.1 賺...........................................................................141 面试题130什么是函数模板.....................................................141 面试题131什么是类模板.......................................................143 12.2 獅...........................................................................145 面试题132什么是容器.........................................................145 面试题133有哪几种顺序容器...................................................147 面试题134什么是迭代器的范围.................................................】49 面试题135什么是关联容器.....................................................150 12.3泛型编程.......................................................................152 面试题136什么是泛型编程.....................................................152 面试题137 C++如何实现泛型编程...............................................152 第3篇C/C++专业应用 第13章数据结构教学视频：100分钟）......................................156 13.1 表.............................................................................156 _______ _____________________________________________________________ 0 ^ ____________________________________________________________________ • X • 面试题138有哪几种表的实现方式................................................156 面试题139链表有哪儿种分类....................................................157 13.2 队列............................................................................159 面试题140什么是队列..........................................................159 13.3 栈..............................................................................160 面试题141什么是栈............................................................160 而试题142如何访问栈中的元素..................................................162 13.4 W..............................................................................162 面试题143树的分类有哪些......................................................162 面试题144如何对树进行遍历....................................................164 面试题145如何对二叉树进行遍历................................................164 面试题146如何计算二叉树的高度................................................166 面试题147如何计算二叉树的结点数..............................................167 13.5 图..............................................................................167 面试题148图的实现方式有哪几种................................................167 面试题149如何进行图的搜索？搜索算法有哪几种方式..............................168 13.6 排序............................................................................169 面试题150什么是冒泡排序......................................................169 面试题151鸡尾酒排序（改进的冒泡排序）........................................171 面试题152仆么是选择排序......................................................172 面试题153什么是直接插入排序..................................................173 面试题154什么是归并排序......................................................174 面试题155什么是快速排序............................：........................176 面试题156什么是希尔（Shell)排序..............................................177 面试题157仆么是堆排序........................................................179 13.7排序算法的总结..................................................................180 第14章软件工程（^教学视频：39分钟）.........................................182 14.1 软件工程基础....................................................................182 面试题158什么是软件工程......................................................182 面试题159什么是软件危机......................................................183 14.2软件的4大开发模型..............................................................184 面试题160 4大幵发模型的区别..................................................184 面试题161如何选择开发模型....................................................186 14.3 软件测试........................................................................187 面试题162测试有哪些分类......................................................187 面试题163 如何设计测试用例...................................................188 14.4 UML语言概述...................................................................189 面试题164 什么是UML.........................................................189 面试题165 UML有哪些图......................................................190 _______________________________________________________ ____________________________________________________________ • XI • ___________________________________________________________________________________________________________________ 面试题166 UML中的动态阁................................................191 面试题167静态图有哪几种......................................................192 14.5设计模式........................................................................192 面试题168什么是设计模式......................................................192 面试题169 GOF的23个设计模式是如何进行分类的..................................193 第15章数据库、操作系统、计算机网络教学视频：65分钟）.................195 15.1数据库理论......................................................................195 面试题170什么是关系数据库设计范式............................................195 面试题171什么是数据库事务....................................................196 面试题172有哪儿种数据模型....................................................197 面试题173什么是数据库管理系统................................................198 15.2 SQL 语言.......................................................................199 面试题174什么是SQL语言.....................................................199 面试题175使用SQL语句对表进行分页査询.......................................199 15.3操作系统概述...................................................................200 面试题176什么是操作系统......................................................200 面试题177比较常用的操作系统有哪些............................................201 15.4进程与线程.....................................................................202 面试题178操作系统的最小调度单位是什么.......................................202 面试题179资源的最小单位是什么....................... 202 面试题180进程与线程的区别....................................................203 面试题181如何实现多线程的同步................................................203 15.5 内存与作业调度.................................................................204 面试题182内存管理方式有哪些..................................................204 面试题183作业调度算法有哪些..................................................205 面试题184作业一般有哪些状态..................................................206 15.6计算机网络结构.................................................................206 面试题185 OSI七层模型是什么..................................................207 面试题186 OSI七层网络结构模型与TCP/IP四层结构模型的区别....................207 面试题187什么是TCP/IP协议...................................................208 第16章上机操作题（f教学视频：25分钟）.................................210 16.1 经典算法问题...................................................................210 面试题188斐波那契数列........................................................210 面试题189杨辉三角............................................................212 面试题190整数十进制转二进制..................................................213 面试题191素数问题............................................................214 面试题192字符串转换为整数....................................................215 16.2数据库操作题...................................................................216 面试题193 选课系统............................................................216 • XII • 第17章思维拓展教学视频：16分钟）........................................223 17.1经典试题.......................................................................223 面试题194八皇后问题..........................................................223 面试题195经典矩形............................................................225 面试题196汉诺塔..............................................................229 面试题197新娘和新郞问题......................................................230 面试题198大数乘法............................................................230 17.2面试经验分享...................................................................232 17.2.1面试经过................................................................232 17.2.2由面试想到的............................................................234 17.3群体面试.......................................................................235 第4篇C/C++面试题实战解析 第18章文字解答实战题教学视频：113分钟）................................238 面试题199介绍STL,详细说明STL如何实现vector (华为面试题）................238 面试题200分析Visual C科程序出错的原因.......................................239 面试题201继承和多态有何K别..................................................240 面试题202指针和引用有何区别?传引用比传指针安全，为什么......................240 面试题203参数传递的方式与多态參数传递的实现（摩托罗拉面试题）...............241 面试题204怎样应用设计模式的理念..............................................241 面试题205介绍一•下对设计模式的理解...........................................241 IH试题206 C++和C定义结构的区别是什么（摩托罗拉笔试题）.....................242 面试题207关丁•构造函数和析构函数.............................................242 囟试题208对拷贝构造函数的深拷贝、浅拷贝和临时对象的理解.....................242 面试题209基类中有一个虚函数，子类还需要申明为virtual吗.......................242 面试题210 C++的类有什么优点...................................242 面试题211如何实现多态?父类和子类的继承关系如何..............................243 面试题212为什么要引入抽象基类和纯虚函数（摩托罗拉笔试题）...................243 面试题213介炤一下模板和容器，如何实现.......................................243 面试题214什么是MVC?简单举例说明其应用....................................243 面试题215列举儿种进程的同步机制（华为面试题）...............................243 面试题2〗6进程之间通信的途径..................................................244 面试题217进程死锁的原因......................................................244 面试题218死锁的4个必要条件..................................................244 面试题219死锁的处理..........................................................244 面试题220操作系统中进程调度策略有哪几种.....................................245 面试题22丨类的静态成员和非静态成员有何区别...................................245 面试题222纯虚函数如何定义？使用时应注意什么.................................245 ____________________________________________________________________________________________________________________ • XIII • 面试题223数组和链表的区别....................................................245 面试题224关于ISO七层模型的典型问题.........................................245 面试题225内存的分配方式及其区别.............................................246 面试题226 struct和class的区别.................................................246 面试题227 —个类所占内存空间的问题（Autodesk面试题改编）....................246 面试题228在8086汇编中，逻辑地址和物理地址如何转换（Intel面试题）.................247 面试题229比较C++中的4种类型转换方式.......................................247 面试题230面向对象的3个基本特征是什么.......................................247 面试题231重载（overload)和重写（overried)的K别.............................248 面试题232多态的作用..........................................................248 面试题233 ADO与ADO.NET有何异同...........................................248 面试题234 New delete与malloc free有何联系与区别...............................249 面试题 235 #defineDOUBLE(x)x+x, i = 5*DOUBLE(5)，求 i........................249 面试题236哪几种情况只能用intialization list而不能用assignment....................249 面试题237 OH■是不是类型安全的................................................249 面试题238 mainO函数执行前还会执行什么代码....................................249 面试题239 static有什么用途（至少说明两种）....................................250 面试题240描述实时系统的基本特性.............................................250 面试题241全局变量和局部变量在内存中是否有区别?说明原因......................250 面试题242什么是平衡二叉树...................................................250 面试题243定义int**a[3][4],则变量占用的内存空间为多少........................250 面试题244堆栈溢出一般是由什么原因导致的.....................................251 面试题245什么函数不能声明为虚函数...........................................251 面试题246冒泡排序算法的时间复杂度是什么.....................................251 面试题247写出float x与“零值”比较的if语句..................................251 面试题248 Internet采用哪种网络协议？介绍该协议的主要层次结构..................252 面试题249 Internet物理地址和丨P地址转换采用什么协议............................252 面试题250 IP地址的编码分为哪两部分...........................................252 面试题251不能做switch()的参数类型是什么数据类型..............................252 面试题252尽可能多地说出static和const关键字的作用............................252 面试题253什么是预编译.......................................................253 面试题254写一个标准宏，使其输入两个参数，返回较小的一个.....................254 面试题255嵌入式系统中如何用C语言编写死循环................................254 面试题 256 int(*s[10])(int)表示什么...............................................254 面试题257 F列表达式哪些会被编译器禁止（华为面试题）.......................254 面试题258换两个变虽的值而不使用第3个变量，即a=3, b=5,交换之后a=5, b=3•……255 面试题259 C和C++中的struct有什么不同........................................255 面试题260如何让程序跳转到绝对地址0x100000去执行............................255 面试题261已知一个数组table,用一个宏定义求出数据的元素个数..................256 面试题262关于线程和进程的典型问题...........................................256 ____________________________________________ ____________________________________________________________ • XIV • 面试题263什么是引用？说明申明和使用引用要注意的问题.........................256 面试题264将引用作为函数的参数有哪些特点.....................................256 面试题265什么时候需要使用常引用..............................................257 面试题266给出将“引用”作为函数返冋值类型的格式及其优点和需遵守的规则.......257 面试题267 “引用”与多态的关系................................................259 面试题268如何判断一段程序是由C编译还是由C++编译的.........................259 面试题269结构与联合有何区别..................................................259 面试题270下面代码的输出结果是什么............................................259 面试题271 —个32位的机器的指针是多少位（华为面试题）........................260 面试题272类成员函数的重载、覆盖和隐藏的区别.................................260 面试题273 const相比有何优点..........................................261 曲试题274 h头文件中的ifndef/define/emiif有何作用...............................261 面试题 275 #indude<file.h>~#i!iclude "file.h’•有何区别..............................261 囟试题276 C++中调用被C编译器编译后的函数为何要加extern "C”..................261 面试题277关联、聚合（Aggregation)及组合（omposition)有何区别..................264 面试题278多重继承如何消除向上继承的二义性（摩托罗拉笔试题）.................265 第19章程序改错实战题（t教学视频：31分钟）.................................266 面试题279找出下面代码中的所有错误............................................266 曲试题280找出下面代码中的所有错误............................................266 面试题281找出T••面代码的错误..................................................267 面试题282找出下面代码的错误..................................................267 面试题283找出下面代码的错误..................................................268 面试题284找出下面代码的错误..................................................269 面试题285找出下面代码的错误..................................................270 面试题286找出下面代码的错误..................................................270 面试题287找出下面代码的错误..................................................271 面试题288以卜代码有什么问题..................................................271 面试题289下面程序执行后冇什么错误或结果（华为面试题）.......................272 面试题290改正下面代码的错误..................................................272 面试题291以下代码中的两个sizeof用法有问题吗（朗讯面试题）...................273 面试题292指出下而程序中的错误................................................273 面试题293指出下而程序中的错误................................................273 面试题294指出下而程序中的错误................................................274 面试题295下面程序有什么错误..................................................274 而试题296下面程序有什么错误..................................................274 面试题297下面程序有什么错误..................................................275 面试题298以下代码有什么错误..................................................275 面试题299求一个数的平方，请找出代码错误（华为面试题）.......................276 面试题300找出下面这段程序的错误（华为面试题）...............................276 ________________________________________________ 0 ^ ________________________________________________ • XV • 第20章编写程序实战题（f教学视频：79分钟）.................................277 面试题301写出删除一个单项链表某一个结点的算法...............................277 Ifi]试题302用1分钱、2分钱、5分钱组成1元钱的方式............................278 面试题303奶牛生子的问题（腾讯囱试题）.......................................278 面试题304写一个函数将链表逆序（Intel面试题）.................................279 面试题305将两个链表合并成一个链表依然有序...................................280 面试题306用递归方法将两个链表合并成一个链表依然有序（Autodesk面试题）......281 面试题307给出bool、im、float指针变量与“零值”比较的if语句..................281 面试题308计算Windows NT下32位C++程序的sizeof值..........................282 面试题309写一个“标准”宏MIN,输入两个参数，返N较小的....................283 面试题310标准头文件的结构问题（微软面试题）.................................283 囱试题3U编写一个函数，把一个char组成的字符串循环右移n位..................284 面试题312以适当的数据结构组织WAV文件头并解析文件信息.....................285 面试题3丨3编写类String的构造函数、析构函数和赋值函数.........................286 面试题314写一个C函数，判断不同模式处理器的返回值..........................287 面试题315写一个函数返回l+2+3+“.+n的值......................................288 Ifir试题316输入一个m在屏幕上打印出NXN的矩阵（华为面试题）...............288 面试题317找出两个数中最大的一个（华为面试题）...............................290 面试题318打印出当前源文件的文件名及当前行号.................................290 面试题319 main()主函数执行完毕后是否会再执行一段代码............................290 面试题320 —个关于指针的问题.....................;...........................291 面试题321按要求输出时间......................................................292 面试题322 —个关于字符串函数的问题...........................................293 面试题323尝试写出类的成员函数的实现.........................................294 面试题324简述数组与指针的区别................................................295 面试题325关于C/C++编译器的N题.............................................295 面试题326 —个关于排序和文件输出的问题（华为面试题）.........................296 面试题327找出一个整数数组中的第二大数（微软面试题）.........................297 面试题328判断一个单链表有环..................................................297 面试题329 求函数返回值.......................................................298 向试题330 —个关于如何处理溢出的问题.........................................2% 面试题331如何用C语言将一个字符转换成整型...................................299 第5篇智力测试与逻辑测试 第21章智力测试（t教学视频•• 54分钟）........................................302 21.1数学智力测试...................................................................302 面试题332现代的斯芬克斯（美国AT&T公司2000年面试题）......................302 面试题333 找出次品乒乓球.....................................................302 ________________________________________________ 0 ^ ________________________________________________ • XVI • __________________________________________________________________________________________________________________ 面试题334有几顶黑_子........................................................303 面试题335如何分配蛋糕........................................................303 面试题336如何切会最多........................................................303 面试题337怎样烙饼............................................................304 面试题338如何撥快送到情报....................................................304 面试题339他们是怎么比赛的....................................................304 面试题340如何称大米..........................................................305 面试题341 100美元哪里去了（欧洲某著名1T公司2005年面试题）..................305 面试题342击鼠标比赛（欧洲某著名〖T公司2005年面试题）.......................305 面试题343女儿哪里错了（印度某著名IT公司2003年面试题）.....................306 面试题344原来是什么硬币（日本某著名公司1998年面试题）......................306 面试题345怎样会有满满的一瓶（欧洲某著名丨T公司2006年面试题）...............306 21.2推理智力测试...................................................................307 面试题346蜗牛出井（欧洲某著名1T公司2003年面试题）.........................307 面试题347他们如何过河........................................................307 面试题348为什么上当（中国某大型丨T公司2008年面试题）.......................307 面试题349判断几率............................................................308 面试题350诚实的人（微软1999年应届生面试题）................................308 面试题351到达的顺序（中国某大型IT公司2009年面试题）.......................308 面试题352下列数列中少了一个什么数（中国某大型IT公司2009年面试题）..........308 21.3综合智力测试...................................................................309 面试题353 飞机票如何分配......................................................309 面试题354聪明的农民..........................................................309 面试题355求最短的时间（中国某大型1T公司2007年面试题）.....................309 面试题356不能称到的最轻重量（中国某大型IT公司2007年面试题）...............310 面试题357小机灵的办法（中国某大型丨T公司2006年面试题）.....................310 面试题358池塘取水（美闺某大型I丁公司2003年面试题）.........................310 面试题359 1=5，2=15, 3=215, 4=2145。那么5=?(曰本某大型IT公司2006年 而试题）............................................................311 面试题360如何打开房间........................................................311 面试题361聪明人怎么发财......................................................311 面试题362请问有几条生病的狗..................................................312 第22章逻辑测试（^教学视频：41分钟）.........................................313 22.1文字逻辑测试...................................................................313 面试题363 H是什么人种（北美电信2006年应届生面试题）........................313 面试题364推断血液、脂肪蛋白和胆固醉的关系（中闽某教育集凼2008年面试题）•…•…314 面试题365学籍、学生会干部和奖学金（中国某大型IT公司2003年面试题）.........314 面试题366数学院的规定（中国某著名研究院2007年面试题）......................315 面试题367老师的结论（中国某著名公司2007年面试题）..........................315 • XVII • 面试题368是哪一张牌..........................................................316 22.2图形逻辑测试...................................................................317 面试题369选择正确的图形（欧洲某著名1T公司2003年面试题）...................317 面试题370选择正确的图形（欧洲某著名IT公司2004年面试题）...................318 面试题371选择正确的图形（雅虎中国公司2005年面试题）........................318 面试题372选择正确的图形（中国某大型IT公司2007年面试题）...................319 面试题373选择正确的图形（中国某大型IT公司2002年面试题）...................319 面试题374选择正确的图形（亚洲某著名IT公司2006年面试题）...................320 22.3规律题测试.....................................................................321 面试题375规律题1............................................................321 面试题376 规律题2...........................................................321 面试题377规律题3............................................................322 面试题378 规律题4...........................................................322 面试题379规律题5............................................................322 面试题380规律题6............................................................323 面试题381 规律题7...........................................................323 面试题382 规律题8...........................................................323

目 录 第1篇求职准备和技巧 第1章了解面试——通过面试抓住机会..........................................2 1.1选择自己的应聘职位范围............................................................2 1.1.1针对初级C/Of•工程师职位...................................................2 1.1.2针对中、高级C/OH■开发丁程师职位...........................................3 1.1.3 C/OH■的职位划分............................................................4 1.2制作专业化的应聘简历..............................................................5 1.2.1简历的组成.................................................................5 1.2.2 —个简历的样本.............................................................6 1.4箪握应聘的流程一一步步为营........................................................9 1.5投递简历..........................................................................10 1.5.1招聘网站投递...............................................................10 1.5.2 E-mail 投递................................................................11 1.5.3如何面对招聘会.............................................................12 1.6面试+笔试+上机考试...............................................................13 1.6.1 酿.......................................................................13 1.6.2 笔试.......................................................................14 1.6.3 上机考试...................................................................15 1.7面试后的终结邮件..................................................................16 第2章英文面试教学视频：60分钟）.....................................18 2.1英文面试过程和技巧................................................................18 2.2关于工作..........................................................................19 面试题 1 What salary would you expect for this job.....................................19 面试题 2 What new skills or ideas do you bring to the job that other candidates aren't likely to offer......................................................20 面试题 3 What would you like to accomplish that you weren't able to accomplish in your last position.......................................................20 面试题 4 How have your career motivations changed over the past few years................20 面试题 5 Why should I hire you.....................................................21 面试题 6 What are your key skills...................................................21 面试题 7 What are your strengths...................................................22 而试题 8 How is your experience relevant to this job....................................22 面试题 9 What skills do you think are most critical to this job.............................23 面试题 10 What skills would you like to develop in this job...............................23 面试题 11 If you had to stay in your current job, what would you spend more time on? Why....24 面试题 12 How could you enrich your current job.......................................24 2.3关于个人.........................................................................24 面试题 13 Why do you want to work here............................................25 曲试题 14 Do you believe you’re overqualified for this position..........................25 面试题 15 Tell me about a time you didn’t perform to your capabilities....................26 面试题 16 How do you manage stress in your daily work................................26 面试题 17 Considering your own resume,what are your weaknesses in relation to this job.....26 面试题 18 Describe your working relationship with your colleagues.......................27 面试题 19 Describe your personality beneath the professional image.......................27 向试题 20 How will you complement this department...................................27 2.4关于发展..........................................................................28 面试题 21 Tell me what you learned from a recent book.................................28 面M题 22 What’s your most productive or ideal work setting.............................28 而试题 23 Where do you want to be in five years.......................................29 面试题 24 What are your aspirations beyond this job....................................29 ift 试题 25 How long do you think you'd continue to grow in this job......................29 由试题 26 What do you reasonably expect to earn within five years........................30 第3章电话面试（^1教学视频：13分钟）...........................................31 3.1电话面试简介......................................................................31 3.2如何准备电话面试..................................................................32 3.3电话面试常见问题.................................................................33 面试题27为什么想进本公司......................................................33 面试题28你最#欢这份工作的哪一点或者哪些方面.................................33 面试题29请描述一下你自己的优缺点..............................................34 面试题30你对本公司的了解有多少................................................34 面试题3丨对这份工作的期望与目标何在............................................34 面试题32你为什么要离职........................................................34 面试题33选择这份工作的原因是什么..............................................35 面试题34你认为相关产业的发展会如何............................................35 面试题35你希望的待遇为多少....................................................35 面试题36在工作中学习到了些什么................................................35 _______________________________________________________________UM____________________________________ ___________________________ • VI • 目录 第2篇C/C++基础知识 第4章C/C++语言基础（尤*教学视频：50分钟）...................................38 4.1基本数据类型.....................................................................38 面试题37 C++中有哪几种基本数据类型............................................38 面试题38整型有哪几种形式？各种形式有什么区别.................................39 面试题39 C++中有哪些常量......................................................40 面试题40常量与变量有哪些区别.................................................42 4.2操作符...........................................................................42 面试题41操作符有哪些分类......................................................43 面试题42操作符优先级对运算结果有什么影响.....................................43 面试题43逻辑操作与其他操作的关系.............................................45 面试题44自增自减前操作与后操作的区别.........................................46 面试题45指针&增自减有什么不同...............................................47 4.3变量.............................................................................47 面试题46什么是左值和右值......................................................48 面试题47什么是变童............................................................48 面试题48变量有哪几种初始化方式................................................49 面试题49变量默认初始化有什么规则..............................................50 面试题50仆么是变M的声明和定义................................................50 面试题51 C++中有哪几种作用域.............................................51 面试题52局部变量与嵌套的作用域................................................52 面试题53变景有哪几种存储类型..................................................53 4.4 弓 |fli..............................................................................53 面试题54什么是引用............................................................54 面试题55 如何使用const引用与非const引用........................................54 4.5 C与C*H•的联系...................................................................55 面试题56 C与C++有什么区别..............................................55 4.6编程规范.........................................................................55 面试题57什么是匈牙利命名法....................................................55 面试题58变黄有什么命名规则....................................................56 第5章流程控制教学视频：24分钟）..........................................58 5.1条件语句.........................................................................58 面试题59条件语句有哪几种形式..................................................58 面试题60条件语句如何嵌套？如何匹配else子句...................................59 5.2循环语句.........................................................................61 面试题61 for循环语句的计算顺序是什么..........................................61 面试题62 while循环与do-while循环有什么区别......................................62 • VII • 面试题63典型循环语句..........................................................64 面试题64 break语句与continue语句有什么区别.....................................64 5.3 switch 语句.......................................................................66 面试题65 switch语句的执行顺序是什么.............................................66 面试题66如何在switch语句内部定义变量.........................................67 5.4 細.............................................................................68 面试题67什么是递归............................................................68 面试题68汉诺塔问题............................................................69 第6章输入输出教学视频：15分钟）.....................................73 6.1 输入流与输出流...................................................................73 面试题69什么是标准输入输出流..................................................73 面试题70如何®载输入输出......................................................74 6.2文件输入/输出.....................................................................75 面试题71如何读取一个文件......................................................75 面试题72文件输入输出有哪几种方式.............................................76 6.3异常与错误.......................................................................77 面试题73什么是异常............................................................77 面试题74如何抛出和捕捉异常....................................................78 第7章预处理以及内存管理教学视频：28分钟）...............................80 7.1 宏定义...........................................................................80 面试题75宏定义与操作符的区别..................................................80 而试题76宏定义如何展开........................................................81 7.2 include 的使用.....................................................................82 面试题77 include有哪几种使用方式？有什么区别..................................82 面试题78包含头文件时如何査找头文件...........................................83 7.3 内存分配.........................................................................83 面试题79 C++中各数据类型的长度................................................84 面试题80如何分配和释放存储空间................................................84 7.4虚函数与纯虚函数.................................................................85 由试题81 虚函数与纯虚函数的区别...............................................85 面试题82如何使用纯虚函数......................................................86 第8章指针（教学视频•• 60分钟）...........................................88 8.1指针概述.........................................................................88 面试题83什么是指针............................................................88 而试题84如何初始化指针并对其陚值.............................................89 面试题85是否可以确定指针指向一个对象.........................................90 面试题86如何使用指针操作数组.................................................90 面试题87 const对象的指针和const指针的区别.....................................91 • VIII 面试题88数组指针与指针数组的区别.............................................92 8.2函数指针.........................................................................93 面试题89什么是函数指针？如何使用函数指针.....................................93 面试题90指针函数和函数指针的区别.............................................95 8.3 this 指针..........................................................................96 面试题91什么是this指针........................................................96 面试题92何时使用this指针......................................................％ 8.4引用与值传递..................................................:..................97 面试题93什么是值传递..........................................................97 面试题94引用与值传递的区别...................••.................................98 面试题95指针和引用有什么区别..................................................99 第9章面向对象与类■教学视频：48分钟）................................1〇〇 9.1 面向对象的基本知识..............................................................100 面试题96面向对象与面向过程的区别.............................................100 面试题97面向对象的特征是什么.................................................101 9.2 ^...............................................................................101 面试题98类和结构有什么区别...................................................102 面试题99抽象类及它的用途.....................................................103 9.3 类成员...........................................................................105 面试题100成员变萤有哪些访问方式..............................................105 面试题101成员变量有哪些访问控制方式..........................................105 面试题102 如何访问静态成员....................................................106 9.4 0S.............................................................................108 面试题103什么是多态？多态的作用..............................................108 面试题104在OH•中如何实现多态................................................109 第10章继承教学视频•• 44分钟）.............................................113 10.1 縣............................................................................113 面试题105派生类与基类的转换..................................................113 面试题106什么是虚成员？有什么作用............................................115 面试题107构造函数与析构函数的调用时机........................................116 10.2访问控制........................................................................118 面试题108有哪几种继承方式....................................................118 面试题109继承时访问级别如何变化..............................................120 10.3继承时的类作用域................................................................121 面试题110什么时候发生函数覆盖................................................121 面试题111如何访问基类的成员..................................................122 10.4复制构造函数....................................................................123 面试题112什么是深复制与浅复制................................................123 而试题113什么是复制构造函数..................................................124 _______________________________________________________ ____________________________________________________________ • IX • 10.5类型转换构造函数...............................................................125 面试题114类型转换有哪些分类.................................................125 面试题115什么是类型转换构造函数..............................................126 第11章函数（f教学视频：49分钟）.............................................128 11.1函数的定义......................................................................128 面试题116什么是函数..........................................................128 面试题117形参与实参有什么区别................................................129 面试题118 C++支持参数个数不确定的函数吗.....................................130 面试题119什么是内联函数......................................................131 11.2函数参数的传递..................................................................132 面试题120引用形参和非引用形参有什么区别......................................132 面试题121使用引用形参有什么问题..............................................133 面试题122指针形参与引用形参有什么区别........................................134 11.3类成员函数......................................................................135 面试题123什么是类成员函数？有哪些特别的类成员函数...........................135 面试题124什么是静态函数？如何使用静态函数....................................136 面试题125静态函数能访问类的私有成员..........................................137 面试题126 —-个类可以访问另一个类的私有成员吗...................................137 11.4函数重载.......................................................................138 面试题127函数重载与作用域...................................................138 面试题128如何进行函数重载的匹配.............................................139 面试题129函数重载时如何实现实参的类型转换...................................140 第12章模板与STL ( ^教学视频：46分钟）.....................................141 12.1 賺...........................................................................141 面试题130什么是函数模板.....................................................141 面试题131什么是类模板.......................................................143 12.2 獅...........................................................................145 面试题132什么是容器.........................................................145 面试题133有哪几种顺序容器...................................................147 面试题134什么是迭代器的范围.................................................】49 面试题135什么是关联容器.....................................................150 12.3泛型编程.......................................................................152 面试题136什么是泛型编程.....................................................152 面试题137 C++如何实现泛型编程...............................................152 第3篇C/C++专业应用 第13章数据结构教学视频：100分钟）......................................156 13.1 表.............................................................................156 _______ _____________________________________________________________ 0 ^ ____________________________________________________________________ • X • 面试题138有哪几种表的实现方式................................................156 面试题139链表有哪儿种分类....................................................157 13.2 队列............................................................................159 面试题140什么是队列..........................................................159 13.3 栈..............................................................................160 面试题141什么是栈............................................................160 而试题142如何访问栈中的元素..................................................162 13.4 W..............................................................................162 面试题143树的分类有哪些......................................................162 面试题144如何对树进行遍历....................................................164 面试题145如何对二叉树进行遍历................................................164 面试题146如何计算二叉树的高度................................................166 面试题147如何计算二叉树的结点数..............................................167 13.5 图..............................................................................167 面试题148图的实现方式有哪几种................................................167 面试题149如何进行图的搜索？搜索算法有哪几种方式..............................168 13.6 排序............................................................................169 面试题150什么是冒泡排序......................................................169 面试题151鸡尾酒排序（改进的冒泡排序）........................................171 面试题152仆么是选择排序......................................................172 面试题153什么是直接插入排序..................................................173 面试题154什么是归并排序......................................................174 面试题155什么是快速排序............................：........................176 面试题156什么是希尔（Shell)排序..............................................177 面试题157仆么是堆排序........................................................179 13.7排序算法的总结..................................................................180 第14章软件工程（^教学视频：39分钟）.........................................182 14.1 软件工程基础....................................................................182 面试题158什么是软件工程......................................................182 面试题159什么是软件危机......................................................183 14.2软件的4大开发模型..............................................................184 面试题160 4大幵发模型的区别..................................................184 面试题161如何选择开发模型....................................................186 14.3 软件测试........................................................................187 面试题162测试有哪些分类......................................................187 面试题163 如何设计测试用例...................................................188 14.4 UML语言概述...................................................................189 面试题164 什么是UML.........................................................189 面试题165 UML有哪些图......................................................190 _______________________________________________________ ____________________________________________________________ • XI • ___________________________________________________________________________________________________________________ 面试题166 UML中的动态阁................................................191 面试题167静态图有哪几种......................................................192 14.5设计模式........................................................................192 面试题168什么是设计模式......................................................192 面试题169 GOF的23个设计模式是如何进行分类的..................................193 第15章数据库、操作系统、计算机网络教学视频：65分钟）.................195 15.1数据库理论......................................................................195 面试题170什么是关系数据库设计范式............................................195 面试题171什么是数据库事务....................................................196 面试题172有哪儿种数据模型....................................................197 面试题173什么是数据库管理系统................................................198 15.2 SQL 语言.......................................................................199 面试题174什么是SQL语言.....................................................199 面试题175使用SQL语句对表进行分页査询.......................................199 15.3操作系统概述...................................................................200 面试题176什么是操作系统......................................................200 面试题177比较常用的操作系统有哪些............................................201 15.4进程与线程.....................................................................202 面试题178操作系统的最小调度单位是什么.......................................202 面试题179资源的最小单位是什么....................... 202 面试题180进程与线程的区别....................................................203 面试题181如何实现多线程的同步................................................203 15.5 内存与作业调度.................................................................204 面试题182内存管理方式有哪些..................................................204 面试题183作业调度算法有哪些..................................................205 面试题184作业一般有哪些状态..................................................206 15.6计算机网络结构.................................................................206 面试题185 OSI七层模型是什么..................................................207 面试题186 OSI七层网络结构模型与TCP/IP四层结构模型的区别....................207 面试题187什么是TCP/IP协议...................................................208 第16章上机操作题（f教学视频：25分钟）.................................210 16.1 经典算法问题...................................................................210 面试题188斐波那契数列........................................................210 面试题189杨辉三角............................................................212 面试题190整数十进制转二进制..................................................213 面试题191素数问题............................................................214 面试题192字符串转换为整数....................................................215 16.2数据库操作题...................................................................216 面试题193 选课系统............................................................216 • XII • 第17章思维拓展教学视频：16分钟）........................................223 17.1经典试题.......................................................................223 面试题194八皇后问题..........................................................223 面试题195经典矩形............................................................225 面试题196汉诺塔..............................................................229 面试题197新娘和新郞问题......................................................230 面试题198大数乘法............................................................230 17.2面试经验分享...................................................................232 17.2.1面试经过................................................................232 17.2.2由面试想到的............................................................234 17.3群体面试.......................................................................235 第4篇C/C++面试题实战解析 第18章文字解答实战题教学视频：113分钟）................................238 面试题199介绍STL,详细说明STL如何实现vector (华为面试题）................238 面试题200分析Visual C科程序出错的原因.......................................239 面试题201继承和多态有何K别..................................................240 面试题202指针和引用有何区别?传引用比传指针安全，为什么......................240 面试题203参数传递的方式与多态參数传递的实现（摩托罗拉面试题）...............241 面试题204怎样应用设计模式的理念..............................................241 面试题205介绍一•下对设计模式的理解...........................................241 IH试题206 C++和C定义结构的区别是什么（摩托罗拉笔试题）.....................242 面试题207关丁•构造函数和析构函数.............................................242 囟试题208对拷贝构造函数的深拷贝、浅拷贝和临时对象的理解.....................242 面试题209基类中有一个虚函数，子类还需要申明为virtual吗.......................242 面试题210 C++的类有什么优点...................................242 面试题211如何实现多态?父类和子类的继承关系如何..............................243 面试题212为什么要引入抽象基类和纯虚函数（摩托罗拉笔试题）...................243 面试题213介炤一下模板和容器，如何实现.......................................243 面试题214什么是MVC?简单举例说明其应用....................................243 面试题215列举儿种进程的同步机制（华为面试题）...............................243 面试题2〗6进程之间通信的途径..................................................244 面试题217进程死锁的原因......................................................244 面试题218死锁的4个必要条件..................................................244 面试题219死锁的处理..........................................................244 面试题220操作系统中进程调度策略有哪几种.....................................245 面试题22丨类的静态成员和非静态成员有何区别...................................245 面试题222纯虚函数如何定义？使用时应注意什么.................................245 ____________________________________________________________________________________________________________________ • XIII • 面试题223数组和链表的区别....................................................245 面试题224关于ISO七层模型的典型问题.........................................245 面试题225内存的分配方式及其区别.............................................246 面试题226 struct和class的区别.................................................246 面试题227 —个类所占内存空间的问题（Autodesk面试题改编）....................246 面试题228在8086汇编中，逻辑地址和物理地址如何转换（Intel面试题）.................247 面试题229比较C++中的4种类型转换方式.......................................247 面试题230面向对象的3个基本特征是什么.......................................247 面试题231重载（overload)和重写（overried)的K别.............................248 面试题232多态的作用..........................................................248 面试题233 ADO与ADO.NET有何异同...........................................248 面试题234 New delete与malloc free有何联系与区别...............................249 面试题 235 #defineDOUBLE(x)x+x, i = 5*DOUBLE(5)，求 i........................249 面试题236哪几种情况只能用intialization list而不能用assignment....................249 面试题237 OH■是不是类型安全的................................................249 面试题238 mainO函数执行前还会执行什么代码....................................249 面试题239 static有什么用途（至少说明两种）....................................250 面试题240描述实时系统的基本特性.............................................250 面试题241全局变量和局部变量在内存中是否有区别?说明原因......................250 面试题242什么是平衡二叉树...................................................250 面试题243定义int**a[3][4],则变量占用的内存空间为多少........................250 面试题244堆栈溢出一般是由什么原因导致的.....................................251 面试题245什么函数不能声明为虚函数...........................................251 面试题246冒泡排序算法的时间复杂度是什么.....................................251 面试题247写出float x与“零值”比较的if语句..................................251 面试题248 Internet采用哪种网络协议？介绍该协议的主要层次结构..................252 面试题249 Internet物理地址和丨P地址转换采用什么协议............................252 面试题250 IP地址的编码分为哪两部分...........................................252 面试题251不能做switch()的参数类型是什么数据类型..............................252 面试题252尽可能多地说出static和const关键字的作用............................252 面试题253什么是预编译.......................................................253 面试题254写一个标准宏，使其输入两个参数，返回较小的一个.....................254 面试题255嵌入式系统中如何用C语言编写死循环................................254 面试题 256 int(*s[10])(int)表示什么...............................................254 面试题257 F列表达式哪些会被编译器禁止（华为面试题）.......................254 面试题258换两个变虽的值而不使用第3个变量，即a=3, b=5,交换之后a=5, b=3•……255 面试题259 C和C++中的struct有什么不同........................................255 面试题260如何让程序跳转到绝对地址0x100000去执行............................255 面试题261已知一个数组table,用一个宏定义求出数据的元素个数..................256 面试题262关于线程和进程的典型问题...........................................256 ____________________________________________ ____________________________________________________________ • XIV • 面试题263什么是引用？说明申明和使用引用要注意的问题.........................256 面试题264将引用作为函数的参数有哪些特点.....................................256 面试题265什么时候需要使用常引用..............................................257 面试题266给出将“引用”作为函数返冋值类型的格式及其优点和需遵守的规则.......257 面试题267 “引用”与多态的关系................................................259 面试题268如何判断一段程序是由C编译还是由C++编译的.........................259 面试题269结构与联合有何区别..................................................259 面试题270下面代码的输出结果是什么............................................259 面试题271 —个32位的机器的指针是多少位（华为面试题）........................260 面试题272类成员函数的重载、覆盖和隐藏的区别.................................260 面试题273 const相比有何优点..........................................261 曲试题274 h头文件中的ifndef/define/emiif有何作用...............................261 面试题 275 #indude<file.h>~#i!iclude "file.h’•有何区别..............................261 囟试题276 C++中调用被C编译器编译后的函数为何要加extern "C”..................261 面试题277关联、聚合（Aggregation)及组合（omposition)有何区别..................264 面试题278多重继承如何消除向上继承的二义性（摩托罗拉笔试题）.................265 第19章程序改错实战题（t教学视频：31分钟）.................................266 面试题279找出下面代码中的所有错误............................................266 曲试题280找出下面代码中的所有错误............................................266 面试题281找出T••面代码的错误..................................................267 面试题282找出下面代码的错误..................................................267 面试题283找出下面代码的错误..................................................268 面试题284找出下面代码的错误..................................................269 面试题285找出下面代码的错误..................................................270 面试题286找出下面代码的错误..................................................270 面试题287找出下面代码的错误..................................................271 面试题288以卜代码有什么问题..................................................271 面试题289下面程序执行后冇什么错误或结果（华为面试题）.......................272 面试题290改正下面代码的错误..................................................272 面试题291以下代码中的两个sizeof用法有问题吗（朗讯面试题）...................273 面试题292指出下而程序中的错误................................................273 面试题293指出下而程序中的错误................................................273 面试题294指出下而程序中的错误................................................274 面试题295下面程序有什么错误..................................................274 而试题296下面程序有什么错误..................................................274 面试题297下面程序有什么错误..................................................275 面试题298以下代码有什么错误..................................................275 面试题299求一个数的平方，请找出代码错误（华为面试题）.......................276 面试题300找出下面这段程序的错误（华为面试题）...............................276 ________________________________________________ 0 ^ ________________________________________________ • XV • 第20章编写程序实战题（f教学视频：79分钟）.................................277 面试题301写出删除一个单项链表某一个结点的算法...............................277 Ifi]试题302用1分钱、2分钱、5分钱组成1元钱的方式............................278 面试题303奶牛生子的问题（腾讯囱试题）.......................................278 面试题304写一个函数将链表逆序（Intel面试题）.................................279 面试题305将两个链表合并成一个链表依然有序...................................280 面试题306用递归方法将两个链表合并成一个链表依然有序（Autodesk面试题）......281 面试题307给出bool、im、float指针变量与“零值”比较的if语句..................281 面试题308计算Windows NT下32位C++程序的sizeof值..........................282 面试题309写一个“标准”宏MIN,输入两个参数，返N较小的....................283 面试题310标准头文件的结构问题（微软面试题）.................................283 囱试题3U编写一个函数，把一个char组成的字符串循环右移n位..................284 面试题312以适当的数据结构组织WAV文件头并解析文件信息.....................285 面试题3丨3编写类String的构造函数、析构函数和赋值函数.........................286 面试题314写一个C函数，判断不同模式处理器的返回值..........................287 面试题315写一个函数返回l+2+3+“.+n的值......................................288 Ifir试题316输入一个m在屏幕上打印出NXN的矩阵（华为面试题）...............288 面试题317找出两个数中最大的一个（华为面试题）...............................290 面试题318打印出当前源文件的文件名及当前行号.................................290 面试题319 main()主函数执行完毕后是否会再执行一段代码............................290 面试题320 —个关于指针的问题.....................;...........................291 面试题321按要求输出时间......................................................292 面试题322 —个关于字符串函数的问题...........................................293 面试题323尝试写出类的成员函数的实现.........................................294 面试题324简述数组与指针的区别................................................295 面试题325关于C/C++编译器的N题.............................................295 面试题326 —个关于排序和文件输出的问题（华为面试题）.........................296 面试题327找出一个整数数组中的第二大数（微软面试题）.........................297 面试题328判断一个单链表有环..................................................297 面试题329 求函数返回值.......................................................298 向试题330 —个关于如何处理溢出的问题.........................................2% 面试题331如何用C语言将一个字符转换成整型...................................299 第5篇智力测试与逻辑测试 第21章智力测试（t教学视频•• 54分钟）........................................302 21.1数学智力测试...................................................................302 面试题332现代的斯芬克斯（美国AT&T公司2000年面试题）......................302 面试题333 找出次品乒乓球.....................................................302 ________________________________________________ 0 ^ ________________________________________________ • XVI • __________________________________________________________________________________________________________________ 面试题334有几顶黑_子........................................................303 面试题335如何分配蛋糕........................................................303 面试题336如何切会最多........................................................303 面试题337怎样烙饼............................................................304 面试题338如何撥快送到情报....................................................304 面试题339他们是怎么比赛的....................................................304 面试题340如何称大米..........................................................305 面试题341 100美元哪里去了（欧洲某著名1T公司2005年面试题）..................305 面试题342击鼠标比赛（欧洲某著名〖T公司2005年面试题）.......................305 面试题343女儿哪里错了（印度某著名IT公司2003年面试题）.....................306 面试题344原来是什么硬币（日本某著名公司1998年面试题）......................306 面试题345怎样会有满满的一瓶（欧洲某著名丨T公司2006年面试题）...............306 21.2推理智力测试...................................................................307 面试题346蜗牛出井（欧洲某著名1T公司2003年面试题）.........................307 面试题347他们如何过河........................................................307 面试题348为什么上当（中国某大型丨T公司2008年面试题）.......................307 面试题349判断几率............................................................308 面试题350诚实的人（微软1999年应届生面试题）................................308 面试题351到达的顺序（中国某大型IT公司2009年面试题）.......................308 面试题352下列数列中少了一个什么数（中国某大型IT公司2009年面试题）..........308 21.3综合智力测试...................................................................309 面试题353 飞机票如何分配......................................................309 面试题354聪明的农民..........................................................309 面试题355求最短的时间（中国某大型1T公司2007年面试题）.....................309 面试题356不能称到的最轻重量（中国某大型IT公司2007年面试题）...............310 面试题357小机灵的办法（中国某大型丨T公司2006年面试题）.....................310 面试题358池塘取水（美闺某大型I丁公司2003年面试题）.........................310 面试题359 1=5，2=15, 3=215, 4=2145。那么5=?(曰本某大型IT公司2006年 而试题）............................................................311 面试题360如何打开房间........................................................311 面试题361聪明人怎么发财......................................................311 面试题362请问有几条生病的狗..................................................312 第22章逻辑测试（^教学视频：41分钟）.........................................313 22.1文字逻辑测试...................................................................313 面试题363 H是什么人种（北美电信2006年应届生面试题）........................313 面试题364推断血液、脂肪蛋白和胆固醉的关系（中闽某教育集凼2008年面试题）•…•…314 面试题365学籍、学生会干部和奖学金（中国某大型IT公司2003年面试题）.........314 面试题366数学院的规定（中国某著名研究院2007年面试题）......................315 面试题367老师的结论（中国某著名公司2007年面试题）..........................315 • XVII • 面试题368是哪一张牌..........................................................316 22.2图形逻辑测试...................................................................317 面试题369选择正确的图形（欧洲某著名1T公司2003年面试题）...................317 面试题370选择正确的图形（欧洲某著名IT公司2004年面试题）...................318 面试题371选择正确的图形（雅虎中国公司2005年面试题）........................318 面试题372选择正确的图形（中国某大型IT公司2007年面试题）...................319 面试题373选择正确的图形（中国某大型IT公司2002年面试题）...................319 面试题374选择正确的图形（亚洲某著名IT公司2006年面试题）...................320 22.3规律题测试.....................................................................321 面试题375规律题1............................................................321 面试题376 规律题2...........................................................321 面试题377规律题3............................................................322 面试题378 规律题4...........................................................322 面试题379规律题5............................................................322 面试题380规律题6............................................................323 面试题381 规律题7...........................................................323 面试题382 规律题8...........................................................323

1. USB Basics 1 What USB Can Do 2 Benefits for Users 2 Benefits for Developers 6 Beyond the Hype 10 Evolution of an Interface 13 Original USB 14 USB 2.0 15 USB On-The-Go 16 Wireless USB 16 USB versus IEEE-1394 16 USB versus Ethernet 17 Bus Components 17 Topology 18 Defining Terms 19 Contents iv Division of Labor 22 The Host’s Duties 22 The Peripheral’s Duties 25 What about Speed? 28 Developing a Device 29 Elements in the Link 29 Tools for Developing 30 Steps in Developing a Project 30 2. Inside USB Transfers 33 Transfer Basics 34 Enumeration Communications 34 Application Communications 34 Managing Data on the Bus 35 Host Speed and Bus Speed 36 Elements of a Transfer 37 Device Endpoints: the Source and Sink of Data 38 Pipes: Connecting Endpoints to the Host 40 Types of Transfers 40 Stream and Message Pipes 42 Initiating a Transfer 43 Transactions: the Building Blocks of a Transfer 44 Transaction Phases 45 Ensuring that Transfers Are Successful 51 Handshaking 51 Reporting the Status of Control Transfers 55 Error Checking 56 3. A Transfer Type for Every Purpose 61 Control Transfers 61 Availability 62 Structure 62 Data Size 66 Speed 66 Detecting and Handling Errors 68 Bulk Transfers 68 Availability 69 Structure 69 Data Size 69 Speed 71 Detecting and Handling Errors 71 Contents v Interrupt Transfers 72 Availability 72 Structure 72 Data Size 73 Speed 73 Detecting and Handling Errors 75 Isochronous Transfers 76 Availability 76 Structure 76 Data Size 79 Speed 79 Detecting and Handling Errors 80 More about Time-critical Transfers 80 Bus Bandwidth 81 Device Capabilities 81 Host Capabilities 82 Host Latencies 83 4. Enumeration: How the Host Learns about Devices 85 The Process 86 Enumeration Steps 87 Enumerating a Hub 91 Device Removal 92 Tips for Successful Enumeration 92 Descriptors 93 Types of Descriptors 94 Device Descriptor 96 Device_qualifier Descriptor 99 Configuration Descriptor 101 Other_speed_configuration Descriptor 103 Interface Association Descriptor 103 Interface

电脑世界 2016 12 月份杂志

电脑世界杂志 2016 11月份 Pcworld

电脑世界杂志 2016 10月份

第1章 了解、深入、动手做...... 1 1.1 红透半边天的Android... 2 1.2 本书目的及涵盖范例范围...... 3 1.3 如何阅读本书...... 4 1.4 使用本书范例...... 5 1.5 参考网站...... 7 第2章 Android初体验...... 8 2.1 安装Android SDK与ADT plug-in... 9 2.2 建立第一个Android项目～Hello Android！...... 10 2.3 Android应用程序架构—从此开始...... 13 2.4 可视化的界面开发工具...... 16 2.5 部署应用程序到Android手机...... 17 第3章 用户人机界面...... 20 3.1 更改与显示文字标签——TextView标签的使用...... 21 3.2 更改手机窗口画面底色——drawable定义颜色常数的方法...... 23 3.3 更改TextView文字颜色——引用Drawable颜色常数及背景色...... 25 3.4 置换TextView文字——CharSequence数据类型与 Resource ID应用...... 27 3.5 取得手机屏幕大小——DisplayMetrics取得画面宽高的方法...... 29 3.6 样式化的定型对象——Style样式的定义...... 31 3.7 简易的按钮事件——Button事件处理...... 33 3.8 手机页面的转换——setContentView的应用...... 35 3.9 调用另一个Activity——Intent对象的使用...... 38 3.10 不同Activity之间的数据传递——Bundle对象的实现...... 43 3.11 返回数据到前一个Activity——startActivityForResult方法...... 47 3.12 具有交互功能的对话框——AlertDialog窗口...... 52 3.13 置换文字颜色的机关——Button与TextView的交互...... 54 3.14 控制不同的文字字体——Typeface对象使用...... 56 3.15 如iPhone拖动相片特效——Gallery画廊...... 59 3.16 自制计算器——多按钮的整合应用...... 61 3.17 关于（About）程序信息——Menu功能菜单程序设计...... 63 3.18 程序加载中～请稍后——ProgressDialog与线程整合应用...... 66 3.19 全屏幕以按钮覆盖——动态产生按钮并最大化...... 69 3.20 今晚到哪儿打牙祭？——具选择功能的对话框...... 71 3.21 Android变脸——主题（Theme）实现...... 74 第4章 史上超豪华的手机控件...... 77 4.1 EditText与TextView共舞——setOnKeyListener事件...... 78 4.2 设计具有背景图的按钮——ImageButton的焦点及事件处理...... 79 4.3 给耶诞老人的信息——Toast对象的使用...... 83 4.4 我同意条款——CheckBox的isChecked属性...... 85 4.5 消费券采购列表——多选项CheckBox的应用...... 87 4.6 向左或向右——RadioGroup组与onCheckedChanged事件...... 90 4.7 专业相框设计——ImageView的堆栈应用...... 93 4.8 自定义下拉菜单模式——Spinner与setDropDownViewResource.. 96 4.9 动态添加/删除的Spinner菜单——ArrayList与Widget的依赖性...... 99 4.10 心爱小宝贝相片集——Gallery与衍生BaseAdapter容器...... 103 4.11 快速的搜索手机文件引擎——Java I/O的应用...... 106 4.12 按钮也能随点击变换——ImageButton选择特效...... 109 4.13 具自动提示功能的菜单——AutoCompleteTextView与数组...... 111 4.14 数字及模拟小时钟设计——AnalogClock与DigitalClock的原理...... 113 4.15 动态输入日期与时间——DatePicker与TimePicker应用...... 116 4.16 猜猜红心A在那儿——ImageView点击事件与透明度处理...... 120 4.17 后台程序运行进度提示——ProgressBar与Handler的整合应用...... 124 4.18 动态文字排版——GridView与ArrayAdapter设计...... 129 4.19 在Activity里显示列表列表——ListView的布局...... 133 4.20 以动态列表配置选项——ListActivity与Menu整合技巧...... 136 4.21 查找程序根目录下所有文件——Java I/O与 ListActivity的结合...... 140 4.22 加载手机磁盘里的图文件——使用decodeFile方法...... 144 4.23 动态放大缩小ImageView里的图片——运用Matrix对象 来缩放图文件...... 146 4.24 动态旋转图片——Bitmap与Matrix旋转ImageView.... 150 4.25 猜猜我在想什么——RadioButton ID.... 154 4.26 离开与关闭程序的弹出窗口——对话窗口上的ICON图标...... 158 第5章 交互式通信服务与手机控制...... 162 5.1 具有正则表达式的TextView——Linkify规则...... 163 5.2 ACTION！CALL！拨打电话——Intent.ACTION.CALL的 使用...... 165 5.3 自制发送短信程序——SmsManager与PendingIntent对象...... 168 5.4 自制发送Email程序——Intent在Email上的使用...... 174 5.5 自制日历手机数据库——实现SQLiteOpenHelper. 178 5.6 手机震动的节奏——Vibrator对象及周期运用...... 184 5.7 图文可视化提醒——Toast与LinearLayout View.... 188 5.8 状态栏的图标与文字提醒——NotificationManager与 Notification对象的应用...... 190 5.9 搜索手机通讯录自动完成——使用ContentResolver. 195 5.10 取得联系人资料——Provider.Contact的使用...... 200 5.11 制作有图标的文件资源管理器——自定义Adapter对象...... 204 5.12 还原手机默认桌面——重写clearWallpaper方法...... 210 5.13 置换手机背景图——Gallery与setWallpaper整合实现...... 213 5.14 撷取手机现存桌面——getWallpaper与setImageDrawable.. 217 5.15 文件资源管理器再进化——Java I/O修改文件名及删除...... 219 5.16 取得目前File与Cache的路径——getCacheDir与getFilesDir. 228 5.17 打开/关闭WiFi服务——WifiManager状态判断...... 232 5.18 取得SIM卡内的信息——TelephonyManager的应用...... 242 5.19 调用拨号按钮——打电话CALL_BUTTON.... 247 5.20 DPAD按键处理——onKeyDown事件与Layout坐标交互...... 249 5.21 任务管理器正在运行的程序——RunningTaskInfo... 254 5.22 动态更改屏幕方向——LANDSCAPE与PORTRAIT... 260 5.23 系统设置更改事件——onConfigurationChanged信息处理...... 264 5.24 取得电信网络与手机相关信息——TelephonyManager与 android.provider.Settings.System的应用...... 269 第6章 手机自动服务纪实...... 276 6.1 您有一条短信pop up提醒——常驻BroadcastReceiver的应用...... 277 范例说明...... 277 运行结果...... 277 范例程序...... 278 扩展学习...... 280 6.2 手机电池计量还剩多少——使用BroadcastReceiver捕捉 Intent.ACTION_BATTERY_CHANGED.... 281 范例说明...... 281 运行结果...... 282 范例程序...... 282 扩展学习...... 284 6.3 群发拜年短信给联系人——ACTION_PICK与Uri对象...... 285 范例说明...... 285 运行结果...... 285 范例程序...... 286 扩展学习...... 288 6.4 开始与停止系统服务——Service与Runnable整合并用...... 289 范例说明...... 289 运行结果...... 290 范例程序...... 290 扩展学习...... 294 6.5 通过短信发送email通知——BroadcastReceiver与Intent整合...... 294 范例说明...... 294 运行结果...... 295 范例程序...... 295 扩展学习...... 299 6.6 手机拨接状态——PhoneStateListener之onCallStateChanged... 300 范例说明...... 300 运行结果...... 301 范例程序...... 301 扩展学习...... 304 6.7 有来电，发送邮件通知——PhoneStateListener与 ACTION_SEND.... 304 范例说明...... 304 运行结果...... 305 范例程序...... 305 扩展学习...... 307 6.8 存储卡剩余多少容量——Environment加StatFs.. 308 范例说明...... 308 运行结果...... 308 范例程序...... 308 扩展学习...... 310 6.9 访问本机内存与存储卡——File的创建与删除...... 311 范例说明...... 311 运行结果...... 311 范例程序...... 312 扩展学习...... 319 6.10 实现可定时响起的闹钟——PendingIntent与 AlarmManager的运用...... 319 范例说明...... 319 运行结果...... 319 范例程序...... 320 扩展学习...... 326 6.11 黑名单来电自动静音——PhoneStateListener与AudioManager. 326 范例说明...... 326 运行结果...... 327 范例程序...... 327 扩展学习...... 330 6.12 手机翻背面即静音震动——SensorListener及 AudioManager整合应用...... 330 范例说明...... 330 运行结果...... 331 范例程序...... 331 扩展学习...... 336 6.13 指定时间置换桌面背景——多AlarmManager事件处理...... 337 范例说明...... 337 运行结果...... 337 范例程序...... 338 扩展学习...... 347 6.14 判断发送短信后的状态——BroadcastReceiver聆听PendingIntent. 347 范例说明...... 347 运行结果...... 347 范例程序...... 348 扩展学习...... 351 6.15 后台服务送出广播信息——sendBroadcast与BroadcastReceiver. 353 范例说明...... 353 运行结果...... 353 范例程序...... 354 扩展学习...... 359 6.16 开机程序设计——receiver与intent-filter协同作业...... 360 范例说明...... 360 运行结果...... 360 范例程序...... 360 扩展学习...... 362 6.17 双向短信常驻服务——Service与receiver实例...... 362 范例说明...... 362 运行结果...... 363 范例程序...... 363 扩展学习...... 373 第7章 娱乐多媒体...... 374 7.1 访问Drawable资源的宽高——ContextMenu与Bitmap的应用...... 375 范例说明...... 375 运行结果...... 375 范例程序...... 375 扩展学习...... 378 7.2 绘制几何图形——使用android.graphics类...... 378 范例说明...... 378 运行结果...... 378 范例程序...... 379 扩展学习...... 382 7.3 手机屏幕保护程序——Fade In/ Fade Out特效与运行线程...... 384 范例说明...... 384 运行结果...... 384 范例程序...... 384 扩展学习...... 394 7.4 用手指移动画面里的照片——onTouchEvent事件判断...... 396 范例说明...... 396 运行结果...... 397 范例程序...... 397 扩展学习...... 400 7.5 加载存储卡的Gallery相簿——File ArrayList. 401 范例说明...... 401 运行结果...... 401 范例程序...... 401 扩展学习...... 404 7.6 取得手机内置媒体里的图文件——ACTION_GET_CONTENT 取回InputStream.... 405 范例说明...... 405 运行结果...... 406 范例程序...... 406 扩展学习...... 407 7.7 相片导航向导与设置背景桌面——ImageSwitcher与Gallery... 408 范例说明...... 408 运行结果...... 408 范例程序...... 408 扩展学习...... 412 7.8 调整音量大小声——AudioManager控制音量...... 412 范例说明...... 412 运行结果...... 413 范例程序...... 413 扩展学习...... 416 7.9 播放mp3资源文件——raw文件夹与MediaPlayer的使用...... 417 范例说明...... 417 运行结果...... 417 范例程序...... 417 扩展学习...... 421 7.10 播放存储卡里的mp3音乐——MediaPlayer.setDataSource.. 422 范例说明...... 422 运行结果...... 422 范例程序...... 423 扩展学习...... 427 7.11 自制录音/播放录音程序——MediaRecorder与AudioEncoder. 428 范例说明...... 428 运行结果...... 428 范例程序...... 428 扩展学习...... 434 7.12 通过收到短信开始秘密录音——MediaRecorder与 BroadcastReceiver实例...... 434 范例说明...... 434 运行结果...... 435 范例程序...... 435 扩展学习...... 439 7.13 内置影片播放器载入3gp电影——VideoView Widget. 439 范例说明...... 439 运行结果...... 439 范例程序...... 440 扩展学习...... 442 7.14 自制3gp影片播放器——MediaPlayer与实现SurfaceView.... 444 范例说明...... 444 运行结果...... 445 范例程序...... 445 扩展学习...... 450 7.15 相机预览及拍照临时文件——Camera及PictureCallback事件...... 450 范例说明...... 450 运行结果...... 451 范例程序...... 451 扩展学习...... 458 第8章 当Android与Internet接轨...... 460 8.1 HTTP GET/POST传递参数——HTTP连接示范...... 461 范例说明...... 461 运行结果...... 461 范例程序...... 461 扩展学习...... 465 8.2 在程序里浏览网页——WebView.loadUrl. 465 范例说明...... 465 运行结果...... 466 范例程序...... 466 扩展学习...... 467 8.3 嵌入HTML标记的程序——WebView.loadData.. 468 范例说明...... 468 运行结果...... 469 范例程序...... 469 扩展学习...... 470 8.4 设计前往打开网页功能——Intent与Uri.parse.. 471 范例说明...... 471 运行结果...... 471 范例程序...... 472 扩展学习...... 474 8.5 将网络图像网址放入Gallery中显示——URL、 URLConnection、BaseAdapter. 474 范例说明...... 474 运行结果...... 475 范例程序...... 475 扩展学习...... 477 8.6 即时访问网络图文件展示——HttpURLConnection... 478 范例说明...... 478 运行结果...... 478 范例程序...... 478 扩展学习...... 480 8.7 手机气象局，实时卫星云图——HttpURLConnection与 URLConnection和运行线程...... 480 范例说明...... 480 运行结果...... 480 范例程序...... 481 扩展学习...... 483 8.8 通过网络播放MP3——Runnable存储FileOutputStream技巧...... 484 范例说明...... 484 运行结果...... 484 范例程序...... 484 扩展学习...... 491 8.9 设置远程下载音乐为手机铃声——RingtoneManager与 铃声存放路径...... 492 范例说明...... 492 运行结果...... 492 范例程序...... 492 扩展学习...... 498 8.10 远程下载桌面背景图案——URLConnection与 setWallpaper()搭配...... 499 范例说明...... 499 运行结果...... 499 范例程序...... 500 扩展学习...... 502 8.11 将手机文件上传至网站服务器——模拟HTTP FORM的 POST ACTION.... 503 范例说明...... 503 运行结果...... 503 范例程序...... 504 扩展学习...... 506 8.12 移动博客发布器——以XML-RPC达成远程过程调用...... 508 范例说明...... 508 运行结果...... 510 范例程序...... 510 扩展学习...... 514 8.13 移动RSS阅读器——利用SAXParser解析XML... 515 范例说明...... 515 运行结果...... 515 范例程序...... 515 扩展学习...... 526 8.14 远程下载安装Android程序——APK Installer的应用...... 527 范例说明...... 527 运行结果...... 528 范例程序...... 528 扩展学习...... 533 8.15 手机下载看3gp影片——Runnable混搭SurfaceView.... 534 范例说明...... 534 运行结果...... 534 范例程序...... 535 扩展学习...... 543 8.16 访问网站Login API——远程服务器验证程序运行权限...... 544 范例说明...... 544 运行结果...... 544 范例程序...... 544 扩展学习...... 550 8.17 地震速报！——HttpURLConnection与Service侦测服务...... 551 范例说明...... 551 运行结果...... 552 范例程序...... 552 扩展学习...... 561 第9章 Google服务与Android混搭...... 563 9.1 Google帐号验证Token——AuthSub... 564 范例说明...... 564 运行结果...... 564 范例程序...... 564 扩展学习...... 572 9.2 Google搜索——AutoCompleteTextView与Google Search API. 573 范例说明...... 573 运行结果...... 573 范例程序...... 573 扩展学习...... 578 9.3 前端产生QR Code二维条形码——Google Chart API. 579 范例说明...... 579 运行结果...... 579 范例程序...... 579 扩展学习...... 583 9.4 以经纬度查找目的地位置——GeoPoint与MapView的搭配运用...... 584 范例说明...... 584 运行结果...... 585 范例程序...... 585 扩展学习...... 588 9.5 GPS Google地图——LocationListener与MapView实时更新...... 589 范例说明...... 589 运行结果...... 589 范例程序...... 589 扩展学习...... 594 9.6 移动版Google Map——Geocoder反查Address对象...... 595 范例说明...... 595 运行结果...... 595 范例程序...... 595 扩展学习...... 599 9.7 规划导航路径——Directions Route.. 602 范例说明...... 602 运行结果...... 603 范例程序...... 603 9.8 移动设备上的Picasa相册——Google Picasa API. 610 范例说明...... 610 运行结果...... 611 范例程序...... 611 扩展学习...... 626 9.9 随身翻译机——Google Translate API. 628 范例说明...... 628 运行结果...... 628 范例程序...... 628 第10章 创意Android程序设计...... 634 10.1 手机手电筒——PowerManager控制WakeLock并改变手机亮度...... 635 范例说明...... 635 运行结果...... 635 范例程序...... 635 扩展学习...... 641 10.2 GPS轨迹记录器——利用LocationListener在地图上 画图并换算距离...... 642 范例说明...... 642 运行结果...... 642 范例程序...... 643 扩展学习...... 651 10.3 女性贴身看护——AlarmManager、DatePicker、TimePicker. 652 范例说明...... 652 运行结果...... 653 范例程序...... 653 扩展学习...... 664 10.4 手机QR Code二维条形码生成器——Canvas与 SurfaceHolder绘图...... 665 范例说明...... 665 运行结果...... 665 范例程序...... 665 扩展学习...... 669 10.5 Android QR Code二维条形码扫描仪—— BitmapFactory.decodeByteArray... 670 范例说明...... 670 运行结果...... 671 范例程序...... 671 扩展学习...... 681 10.6 上班族今天中午要吃什么——热量骰子地图...... 682 范例说明...... 682 运行结果...... 683 范例程序...... 683 展学习...... 708 10.7 掷杯筊——把手机放在空中甩事件处理...... 709 范例说明...... 709 运行结果...... 710 范例程序...... 710 扩展学习...... 715

电脑世界 2016年9月份杂志

电脑世界杂志 2016年 8 月份

Understand Android OS for both smartphone and tablet programming This fast-paced introduction to the newest release of Android OS gives aspiring mobile app developers what they need to know to program for today's hottest Android smartphones and tablets. Android 4 OS is, for the first time, a single solution for both smartphones and tablets, so if you master the information in this helpful guide, you'll be well on your way to successful development for both devices. From using activities and intents and creating rich user interfaces to working with SMS, messaging APIs, and the Android SDK, what you need is here. Provides clear instructions backed by real-world programming examples Begins with the basics and covers everything Android 4 developers need to know for both smartphones and tablets Explains how to customize activities and intents, create rich user interfaces, and manage data Helps you work with SMS and messaging APIs, the Android SDK, and using location-based services Details how to package and publish your applications to the Android Market Beginning Android 4 Application Development pares down the most essential steps you need to know so you can start creating Android applications today.