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Preface.................................................................................................................................... 6 Preface to the first edition........................................................................................................8 Chapter 1 - A Tutorial Introduction.........................................................................................9 1.1 Getting Started..............................................................................................................9 1.2 Variables and Arithmetic Expressions..........................................................................11 1.3 The for statement.........................................................................................................15 1.4 Symbolic Constants......................................................................................................17 1.5 Character Input and Output.........................................................................................17 1.5.1 File Copying..........................................................................................................18 1.5.2 Character Counting...............................................................................................19 1.5.3 Line Counting.......................................................................................................20 1.5.4 Word Counting.....................................................................................................21 1.6 Arrays..........................................................................................................................23 1.7 Functions.....................................................................................................................25 1.8 Arguments - Call by Value...........................................................................................28 1.9 Character Arrays..........................................................................................................29 1.10 External Variables and Scope.....................................................................................31 Chapter 2 - Types, Operators and Expressions.......................................................................35 2.1 Variable Names............................................................................................................35 2.2 Data Types and Sizes...................................................................................................35 2.3 Constants.....................................................................................................................36 2.4 Declarations.................................................................................................................38 2.5 Arithmetic Operators...................................................................................................39 2.6 Relational and Logical Operators.................................................................................39 2.7 Type Conversions........................................................................................................40 2.8 Increment and Decrement Operators............................................................................43 2.9 Bitwise Operators........................................................................................................45 2.10 Assignment Operators and Expressions......................................................................46 2.11 Conditional Expressions.............................................................................................47 2.12 Precedence and Order of Evaluation..........................................................................48 Chapter 3 - Control Flow.......................................................................................................50 3.1 Statements and Blocks.................................................................................................50 3.2 If-Else..........................................................................................................................50 3.3 Else-If..........................................................................................................................51 3.4 Switch..........................................................................................................................52 3.5 Loops - While and For.................................................................................................53 3.6 Loops - Do-While........................................................................................................56 3.7 Break and Continue.....................................................................................................57 3.8 Goto and labels............................................................................................................57 Chapter 4 - Functions and Program Structure........................................................................59 4.1 Basics of Functions......................................................................................................59 4.2 Functions Returning Non-integers................................................................................61 4.3 External Variables........................................................................................................63 4.4 Scope Rules.................................................................................................................68 4.5 Header Files.................................................................................................................69 4.6 Static Variables............................................................................................................70 4.7 Register Variables........................................................................................................71 4.8 Block Structure............................................................................................................71 4.9 Initialization.................................................................................................................72 4.10 Recursion...................................................................................................................73 4.11 The C Preprocessor....................................................................................................74 4.11.1 File Inclusion.......................................................................................................75 4.11.2 Macro Substitution..............................................................................................75 www.plcworld.cn 3 4.11.3 Conditional Inclusion..........................................................................................77 Chapter 5 - Pointers and Arrays.............................................................................................78 5.1 Pointers and Addresses................................................................................................78 5.2 Pointers and Function Arguments.................................................................................79 5.3 Pointers and Arrays......................................................................................................81 5.4 Address Arithmetic......................................................................................................84 5.5 Character Pointers and Functions.................................................................................87 5.6 Pointer Arrays; Pointers to Pointers.............................................................................89 5.7 Multi-dimensional Arrays.............................................................................................92 5.8 Initialization of Pointer Arrays.....................................................................................93 5.9 Pointers vs. Multi-dimensional Arrays..........................................................................94 5.10 Command-line Arguments..........................................................................................95 5.11 Pointers to Functions.................................................................................................98 5.12 Complicated Declarations.........................................................................................100 Chapter 6 - Structures..........................................................................................................105 6.1 Basics of Structures...................................................................................................105 6.2 Structures and Functions............................................................................................107 6.3 Arrays of Structures...................................................................................................109 6.4 Pointers to Structures.................................................................................................112 6.5 Self-referential Structures...........................................................................................113 6.6 Table Lookup............................................................................................................117 6.7 Typedef......................................................................................................................119 6.8 Unions.......................................................................................................................120 6.9 Bit-fields....................................................................................................................121 Chapter 7 - Input and Output...............................................................................................124 7.1 Standard Input and Output.........................................................................................124 7.2 Formatted Output - printf...........................................................................................125 7.3 Variable-length Argument Lists..................................................................................127 7.4 Formatted Input - Scanf.............................................................................................128 7.5 File Access.................................................................................................................130 7.6 Error Handling - Stderr and Exit................................................................................132 7.7 Line Input and Output................................................................................................134 7.8 Miscellaneous Functions............................................................................................135 7.8.1 String Operations................................................................................................135 7.8.2 Character Class Testing and Conversion..............................................................135 7.8.3 Ungetc................................................................................................................135 7.8.4 Command Execution...........................................................................................135 7.8.5 Storage Management..........................................................................................136 7.8.6 Mathematical Functions.......................................................................................136 7.8.7 Random Number generation................................................................................136 Chapter 8 - The UNIX System Interface..............................................................................138 8.1 File Descriptors..........................................................................................................138 8.2 Low Level I/O - Read and Write................................................................................139 8.3 Open, Creat, Close, Unlink........................................................................................140 8.4 Random Access - Lseek.............................................................................................142 8.5 Example - An implementation of Fopen and Getc.......................................................142 8.6 Example - Listing Directories.....................................................................................145 8.7 Example - A Storage Allocator..................................................................................149 Appendix A - Reference Manual..........................................................................................154 A.1 Introduction..............................................................................................................154 A.2 Lexical Conventions..................................................................................................154 A.2.1 Tokens...............................................................................................................154 A.2.2 Comments..........................................................................................................154 www.plcworld.cn 4 A.2.3 Identifiers...........................................................................................................154 A.2.4 Keywords...........................................................................................................154 A.2.5 Constants...........................................................................................................155 A.2.6 String Literals.....................................................................................................156 A.3 Syntax Notation........................................................................................................156 A.4 Meaning of Identifiers...............................................................................................157 A.4.1 Storage Class.....................................................................................................157 A.4.2 Basic Types........................................................................................................157 A.4.3 Derived types.....................................................................................................158 A.4.4 Type Qualifiers...................................................................................................158 A.5 Objects and Lvalues..................................................................................................158 A.6 Conversions..............................................................................................................159 A.6.1 Integral Promotion.............................................................................................159 A.6.2 Integral Conversions...........................................................................................159 A.6.3 Integer and Floating...........................................................................................159 A.6.4 Floating Types....................................................................................................159 A.6.5 Arithmetic Conversions......................................................................................159 A.6.6 Pointers and Integers..........................................................................................160 A.6.7 Void...................................................................................................................160 A.6.8 Pointers to Void.................................................................................................161 A.7 Expressions...............................................................................................................161 A.7.1 Pointer Conversion.............................................................................................161 A.7.2 Primary Expressions...........................................................................................161 A.7.3 Postfix Expressions............................................................................................162 A.7.4 Unary Operators.................................................................................................164 A.7.5 Casts..................................................................................................................165 A.7.6 Multiplicative Operators.....................................................................................165 A.7.7 Additive Operators.............................................................................................166 A.7.8 Shift Operators...................................................................................................166 A.7.9 Relational Operators...........................................................................................167 A.7.10 Equality Operators...........................................................................................167 A.7.11 Bitwise AND Operator.....................................................................................167 A.7.12 Bitwise Exclusive OR Operator........................................................................167 A.7.13 Bitwise Inclusive OR Operator.........................................................................168 A.7.14 Logical AND Operator.....................................................................................168 A.7.15 Logical OR Operator........................................................................................168 A.7.16 Conditional Operator........................................................................................168 A.7.17 Assignment Expressions...................................................................................169 A.7.18 Comma Operator..............................................................................................169 A.7.19 Constant Expressions.......................................................................................169 A.8 Declarations..............................................................................................................170 A.8.1 Storage Class Specifiers.....................................................................................170 A.8.2 Type Specifiers...................................................................................................171 A.8.3 Structure and Union Declarations.......................................................................172 A.8.4 Enumerations.....................................................................................................174 A.8.5 Declarators.........................................................................................................175 A.8.6 Meaning of Declarators......................................................................................176 A.8.7 Initialization.......................................................................................................178 A.8.8 Type names........................................................................................................180 A.8.9 Typedef..............................................................................................................181 A.8.10 Type Equivalence.............................................................................................181 A.9 Statements................................................................................................................181 A.9.1 Labeled Statements.............................................................................................182 www.plcworld.cn 5 A.9.2 Expression Statement.........................................................................................182 A.9.3 Compound Statement.........................................................................................182 A.9.4 Selection Statements..........................................................................................183 A.9.5 Iteration Statements...........................................................................................183 A.9.6 Jump statements.................................................................................................184 A.10 External Declarations..............................................................................................184 A.10.1 Function Definitions.........................................................................................185 A.10.2 External Declarations.......................................................................................186 A.11 Scope and Linkage..................................................................................................186 A.11.1 Lexical Scope...................................................................................................187 A.11.2 Linkage............................................................................................................187 A.12 Preprocessing..........................................................................................................187 A.12.1 Trigraph Sequences..........................................................................................188 A.12.2 Line Splicing....................................................................................................188 A.12.3 Macro Definition and Expansion.......................................................................188 A.12.4 File Inclusion....................................................................................................190 A.12.5 Conditional Compilation...................................................................................191 A.12.6 Line Control.....................................................................................................192 A.12.7 Error Generation..............................................................................................192 A.12.8 Pragmas............................................................................................................192 A.12.9 Null directive....................................................................................................192 A.12.10 Predefined names............................................................................................192 A.13 Grammar.................................................................................................................193 Appendix B - Standard Library............................................................................................199 B.1 Input and Output: <stdio.h>......................................................................................199 B.1.1 File Operations...................................................................................................199 B.1.2 Formatted Output...............................................................................................200 B.1.3 Formatted Input..................................................................................................202 B.1.4 Character Input and Output Functions................................................................203 B.1.5 Direct Input and Output Functions......................................................................204 B.1.6 File Positioning Functions...................................................................................204 B.1.7 Error Functions..................................................................................................205 B.2 Character Class Tests: <ctype.h>...............................................................................205 B.3 String Functions: <string.h>......................................................................................205 B.4 Mathematical Functions: <math.h>............................................................................206 B.5 Utility Functions: <stdlib.h>......................................................................................207 B.6 Diagnostics: <assert.h>..............................................................................................209 B.7 Variable Argument Lists: <stdarg.h>.........................................................................209 B.8 Non-local Jumps: <setjmp.h>....................................................................................210 B.9 Signals: <signal.h>....................................................................................................210 B.10 Date and Time Functions: <time.h>.........................................................................210 B.11 Implementation-defined Limits: <limits.h> and <float.h>.........................................212 Appendix C - Summary of Changes.....................................................................................214

Win7下硬盘安装Ubuntu11.04双系统 欢迎大家访问我们的网站：Linux起点：http://www.linuxqd.com起点论坛：http://www.linuxqd.com/bbss起点超级Q群：㈠10218442 ㈡92186523 ㈢90282859 ㈣106637392一、准备工作（在win7下操作完成）1.从官网www.ubuntu.com上下载镜像文件，大小接近700M。 2.下载并安装easybcd。easybcd是一款很优秀的系统引导软件，功能强大，最关键的是傻瓜式一站式简易操作，极其适合新手使用！网上很多说用grubdos安装,但对于菜鸟的我来说，操作太麻烦而且容易引导失败！3.腾出一个空盘，点击右键格式化之后把它删除（这个盘最好是在硬盘的后面，因为Windows系统不能识别Linux系统分区，如果将ubuntu装在D盘，将D盘删除并建立Linux系统分区后，原来的E盘就会变成D盘，安装在E盘的软件会出现系统注册表路径不对称，要重新安装一遍软件）。网上很多说使用磁盘压缩功能以整理出空白分区，这个方法也可行，但这个盘要保证有10G空间以上比较稳妥。 4.安装好easybcd2.0后，启动软件：......

1、HTML静态化其实大家都知道，效率最高、消耗最小的就是纯静态化的html页面，所以 我们尽可能使我们的网站上的页面采用静态页面来实现，这个最简单的方法其实也是最有效的方法。但是对于大量内容并且频繁更新的网站，我们无法全部手动去挨 个实现，于是出现了我们常见的信息发布系统CMS，像我们常访问的各个门户站点的新闻频道，甚至他们的其他频道，都是通过信息发布系统来管理和实现的，信 息发布系统可以实现最简单的信息录入自动生成静态页面，还能具备频道管理、权限管理、自动抓取等功能，对于一个大型网站来说，拥有一套高效、可管理的 CMS是必不可少的。除了门户和信息发布类型的网站，对于交互性要求很高的社区类型网站来说，尽可能的静态化也是提高性能的必要手段，将社区内的帖子、文 章进行实时的静态化，有更新的时候再重新静态化也是大量使用的......

C++程序设计谭浩强100%25完整·清华大学.pdf

绝对官方绝对官方绝对官方绝对官方绝对官方绝对官方绝对官方 aflax官方源码包（doc,examples）aflax官方源码包（doc,examples）aflax官方源码包（doc,examples）

老掉牙 河内塔 费式数列 巴斯卡三角形 三色棋 老鼠走迷官（一） 老鼠走迷官（二） 骑士走棋盘 八个皇后 八枚银币 生命游戏 字串核对 双色、三色河内塔 背包问题（Knapsack Problem） 数、运算 蒙地卡罗法求 PI Eratosthenes筛选求 质数 超长整数运算（大数运算） 长 PI 最大公因数、最小公倍数、因式分解 完美数 阿姆斯壮数 最大访客数 中序式转后序式（前序式） 后序式的运算 关于赌博 洗扑克牌（乱数排列） Craps赌博游戏 约瑟夫问题（Josephus Problem） 集合问题 排列组合 格雷码（Gray Code） 产生可能的集合 m元素集合的n个元素子集 数字拆解 排序 得分排行 选择、插入、气泡 排序 Shell 排序法 - 改良的插入排序 Shaker 排序法 - 改良的气泡排序 Heap 排序法 - 改良的选择排序 快速排序法（一） 快速排序法（二） 快速排序法（三） 合并排序法 基数排序法 搜寻 循序搜寻法（使用卫兵） 二分搜寻法（搜寻原则的代表） 插补搜寻法 费氏搜寻法 矩阵 稀疏矩阵 多维矩阵转一维矩阵 上三角、下三角、对称矩阵 奇数魔方阵 4N 魔方阵 2(2N+1) 魔方阵 堆叠、伫列 堆叠 - 使用阵列实作 堆叠 - 使用链结实作（C 语言动态记忆体宣告） 堆叠 - 使用 Java 作物件封装 伫列 - 使用阵列实作 伫列 - 使用链结实作（C语言动态记忆体宣告） 伫列 - 使用Java 作物件封装 其它 自产生程式（quine）

20届IOCCC比赛获奖结果和代码4月15日完整公布。国际C语言混乱代码大赛（IOCCC, The International Obfuscated C Code Contest）是一项著名的国际编程赛事，从1984年开始到2006年，每年举办一次。2006年后中止了多年，2011年又开始恢复。比赛的目的是写出最有创意的最让人难以理解的C语言代码，当然有好玩的成分，但也能充分展示C语言和程序员的强大。

简单的来说是介绍了“存储过程、触发器、视图、信息架构视图”，这是介绍MySQL 5.0新特性丛书的第一集。希望这本书能像内行专家那样与您进行对话，用简单的问题、例子让你学到需要的知识。 为了达到这样的目的，我会从每一个细节开始慢慢的为大家建立概念，最后会给大家展示较大的实用用例，在学习之前也许大家会认为这个用例很难，但是只要跟着课程去学，相信很快就能掌握。

2010年1月22日，更新至JQuery 1.4版本，本版是参考shawphy的1.4在线版本（http://jquery-api-zh-cn.googlecode.com/svn/trunk/xml/jqueryapi.xml）制作，更新了好多以前的内容，以前没仔细核对过，发现之前网上流行的chm版本基本都基于1.2的，1.3的内容很多都没加进去，这次都补全了。用*标注了1.3版本新加的内容，@标注1.4新加的内容，方便大家查看。 如果发现什么错误，请联系我：www.ajaxa.cn，QQ:274430124 -------------------------------------------------------------------------------- 下载最新的jQuery文件 jQuery 1.4 Minified (23kb Gzipped) jQuery 1.4 Regular (154kb)

本文档来自于“臧圩人--JAVA面试题解惑系列合集”。我看了很受用。于是共享下，也赚点积分。

界面简洁漂亮，大量运用js插件。后台采用主流框架，运用了很多设计模式，架构精巧。是值得研究学习的好代码。（自己在网上闲逛时发现的，该项目现在可能还在继续更新。）

这是一篇pdf格式的论文。很详细地图文并茂地讲解了树形菜单的设计。并分析了常规设计方式的不足。以冗余数据的方式设计了高效的树形菜单表。

一、前言 随着网络技术的发展与普及, 越来越多的服务要求跨平台 的实现。各个网络运营商纷纷开发出自己的网络服务( Web Service) 来攻占越来越趋于明朗化的以服务为导向的IT 市场, 目前被寄予厚望的网格服务( Grid Service) 技术也顺时成为了 IT业研发的重点。在这种趋势下我们看到, 越来越多的应用 服务开发开始由C 语言转向Java 这样一种开源的跨平台的语 言, 无论是在构建一般的企业业务逻辑还是专业的网络运营提 供的网络存储、计算服务, 使用Java 都已经成为了一种主导和 趋势。以网格服务开发系统Globus 为例, 作为一个开源系统, 它的各个模块几乎都以开源的Java 开发为基础。一个不争的 事实是Java 以其跨平台性和开源性已吸引了越来越多的开发 者和使用者, 甚至很多最初用C, C ++ 开发的项目已经开始整 体的转换为用Java 开发。

c语言从基础到高级的开发必备手册。中文版的。解压后10.7M。PDF格式。

常用的算法分析。很经典。值得收藏。编程语言不限。菜鸟大牛都适合。

txt文本的电子教程，概括性的讲了一下批处理…… 最近对于批处理技术的探讨比较热，也有不少好的批处理程序发布，但是如果没有一定的相关知识恐怕不容易看懂和理解这些批处理文件，也就更谈不上自己动手编写了，古语云：“授人以鱼，不如授人以渔。”因为网上好像并没有一个比较完整的教材,所以抽一点时间写了这片<<简明批处理教程> >给新手朋友们.也献给所有为实现网络的自由与共享而努力的朋友们.