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RSS订阅原创 【fedora 35命令行挂载android设备内部USB存储空间】
fedora 35 使用gio mount挂载安卓存储， 步骤如下：1. 检查usb端口情况lsusb$ lsusb...Bus 001 Device 012: ID 05c6:f003 Qualcomm, Inc. Nokia 8110 4G...PS: 需要将手机的usb偏好设置为“文件传输”2. 使用gio mount -li命令找出mtp路径$ gio mount -li | grep mtp activation_root=mtp://Android_Android_c441
2022-05-21 23:48:07
375
原创 fedora IntelliJ IDEA 2021.2.2(Community Edition)回到上一处【back】快捷键ctrl+alt+left，按住ctrl+window键+alt+left
@[TOC](fedora IntelliJ 2021.2.2(Community Edition)回到上一处【back】快捷键ctrl+alt+left，按住ctrl+window键+alt+left)如题
2021-10-06 15:24:40
168
原创 Win7 sp1下免费安装 Visual C++ 2015编译器及解决运行期缺少ucrtbased.dll
win7 sp1 免费安装VC++2015编译器
2016-10-11 19:43:49
6924
原创 CL visual C++
cl /c // compile only, no link /IC:\include // add to include search path /ZI // enable Edit and Continue debug info /nologo- // not suppress copyright message /W3 // set warning level 3(default
2016-10-10 20:21:21
467
原创 fedora 22 安装postgresql
root用户操作 1） dnf -y install postgresql-server.x86_64 2）systemctl enable postgresql.service 3）[root@localhost ~]# postgresql-setup –initdb * Initializing database in ‘/var/lib/pgsql/data’ * Initi
2016-07-24 22:44:21
1181
原创 用C++ 语言如何实现表达式拆分“1*2*3*(4+(5+6)*(7+8))+9”
问题：用C++ 语言如何实现表达式拆分 把一个字符串形式的数学表达式以拆加号为原则，一级一级拆分，最终汇总为一个字符串数组。数学表达式是由”+”、”(“、”)”和数字组成。示例如下：1、字符串表达式为：1*2*3*(4+(5+6)*(7+8))+9拆分最终的字符串数组结果为（数组元素排序没有要求）： 1*2*3*4 1*2*3*5*7 1*2*3*5*8 1*2*3*6*7 1*
2016-01-22 12:47:07
1711
原创 判断单链表是否有环（C++）
问题：判断单链表是否有环（C++） 有一个链表，我们需要判断链表中是否存在环。有环则输出true，否则输出false。 输入有多行，每行为由空格分隔的两个整数m和n，m是当前结点的数据，n代表当前结点的指针域指向第n个结点。 n存在四种情形： ①为-1，代表该结点的指针域指向NULL，输入结束； ②指向该结点之前的结点，如第3个结点的指针域指向n = 2的结点； ③指向自己，如第3个结点
2016-01-21 15:35:46
1189
原创 fedora 22 kde desktop & input method(Chinese) & 英文环境Konsole输入中文
fedora 22 kde1, kde桌面安装 # dnf install @kde-desktop2, 中文输入法和必要的相关模块# dnf install fcitx-libpinyin# dnf install kcm-fcitx3, 添加中文输入法（此时已切换至kde桌面环境） Input Method Selector 设置：选择“Use
2015-12-26 17:10:50
2883
转载 C++11: random #1
std::uniform_int_distribution; std::default_random_engine
2015-12-19 10:31:29
367
原创 C++11: forwarding parameter packs and define my own version of make_shared
forwarding paramerter packs
2015-12-18 10:54:14
447
转载 C++11: variadic template
#include <iostream>#include <string>template <typename T, typename... Args>void foo(const T &t, const Args& ... rest){ std::cout << sizeof...(Args) << std::endl; std::cout << sizeof.
2015-12-18 10:05:48
478
转载 C++11: std::forward
using std::forward to preserve type information in a call
2015-12-17 22:44:33
396
转载 C++11: default template arguments for both function and class templates
#include <functional>#include <iostream>template <typename T, typename F = std::less<T>>int compare(const T &v1, const T &v2, F f = F()){ if (f(v1, v2)) return -1; if (f(v2, v1)) re
2015-12-17 17:40:17
438
转载 C++11: inherited constructors
#include <string>#include <iostream>class Quote {public: Quote() = default; Quote(const std::string &book, double sales_price) : bookNo(book), price(sales_price) {}
2015-12-17 11:41:21
880
转载 C++11: deleted copy control
// Because the copy constructor is defined, the compiler will not syn-// thesize a move constructor for class B. As a result, we can neithe-// r move nor copy objects of type B. If a class derived fr
2015-12-17 10:53:18
316
转载 c++: allocator, uninitialized_copy, uninitialized_fill_n
#include <memory>#include <iostream>#include <vector>int main(){ std::vector<int> vi{1, 3, 5, 7}; std::allocator<int> alloc; auto p = alloc.allocate(vi.size() * 2);
2015-12-16 11:13:18
1031
转载 c++11: allocator construct
#include <memory>#include <string>#include <iostream>int main(){ const int n = 10; std::allocator<std::string> alloc; auto const p = alloc.allocate(n); auto q = p;
2015-12-16 10:45:20
1322
原创 C++11: smart pointer
std::shared_ptr<std::vector<std::string> > data; void check(size_type i, const std::string &msg) const;
2015-12-15 16:16:25
413
原创 c++ associative container: map and set
#include <map>#include <set>#include <string>#include <iostream>#include <algorithm>#include <functional>#include <locale>void rightTrimPunct(std::string &str){ std::locale locl("C");
2015-12-06 11:27:55
393
转载 C++ lambda algorithm
std::stable_sort(words.begin(), words.end(), [](const std::string &left, const std::string &right) { return left.size() < right.size(); });
2015-11-26 22:30:16
553
原创 C++ algorithm partition
#include <vector>#include <string>#include <algorithm>#include <iterator>#include <iostream>// function that take a string and return true// indicating the string has five characters // or moreb
2015-11-19 23:15:29
1174
转载 C++ back_inserter
#include <iostream>#include <iterator>#include <vector>// g++ 4.9.2 x86_64int main(){ std::vector<int> vec; auto it = back_inserter(vec); // assigning through it adds elements to vec
2015-11-16 23:05:06
1366
1转载 vmware-tools install
ubuntu vmware-tools install header is not a valid pathtry: sudo ln -s /usr/src/linux-headers-(uname−r)/include/generated/uapi/linux/version.h/usr/src/linux−headers−(uname -r)/include/generated/uapi/li
2015-08-31 11:44:38
459
转载 Android -- SEGV_MAPERR，SEGV_ACCERR
Per siginfo.h:SEGV_MAPERR means you tried to access an address that doesn’t map to anything.SEGV_ACCERR means you tried to access an address that you don’t have permission to access.So in both cases yo
2015-07-23 13:28:14
9802
原创 PC被62-210-209-235.rev.poneytelecom.eu 攻击
Last login: Thu Mar 19 22:03:45 HKT 2015 on pts/1Last failed login: Sat Mar 21 09:23:22 HKT 2015 from 62-210-209-235.rev.poneytelecom.eu on ssh:nottyThere were 4996 failed login attempts sin
2015-03-21 10:43:16
2896
cppreference html doc
2015-11-02
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