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What is the pythonic way to unpack tuples? [duplicate]

This is ugly. What's a more Pythonic way to do it? 2 Answers 2 ...
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What does preceding a string literal with “r” mean? [duplicate]

I first saw it used in building regular expressions across multiple lines as a method argument to re.compile() , so I assumed that r stands for RegEx. ...
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CREATE TABLE IF NOT EXISTS equivalent in SQL Server [duplicate]

CREATE TABLE IF NOT EXISTS works on mysql but fails with SQL Server 2008 R2. What is the equivalent syntax? 1 Answer ...
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6个变态的C语言Hello World程序 - 创意 - 清泛网 - 专注C/C++及内核技术

...编程通过。 hello1.c #define _________ } #define ________ putchar #define _______ main #define _(a) ________(a); #define ______ _______(){ #define __ ______ _(0x48)_(0x65)_(0x6C)_(0x6C) #define ___ _(0x6F)_(0x2C)_(0x20)_(0x77)_(0x6F) #define ____ _(0x72)_(0x6C)_(0x64)_(0x21) #def...
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C++ template中typename和class的区别 - C/C++ - 清泛网 - 专注C/C++及内核技术

C++ template中typename和class的区别历史原因,以前是用class,后来C++ Standard 出现后,引入了typename, 所以他们是一样的。但是,又有一些微妙的不同,因为有时候,你不得不使用typename。历史原因,以前是用class,后来C++ Standard 出现...
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一个宏命令,就可以程序崩溃时生成dump文件 - C/C++ - 清泛网 - 专注C/C++及内核技术

... #pragma once #include <windows.h> #include < Dbghelp.h> #include <iostream> #include <vector> using namespace std; #pragma comment(lib, "Dbghelp.lib") namespace NSDumpFile { void CreateDumpFile(LPCWSTR lpstrDumpFilePathName, EXCEPTION_POINTERS *pException) { ...
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c++读注册表 - C/C++ - 清泛网 - 专注C/C++及内核技术

c++读注册表直接上代码:CString key;key.Format(_T("Software Microsoft Windows CurrentVersion App Paths xxx"));HKEY hKey;LONG rc = R...直接上代码: CString key; key.Format(_T("Software\\Microsoft\\Windows\\CurrentVersion\\App Paths\\xxx")); HKEY hKey; LONG rc = Reg...
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CreateWindow()动态创建一个EditBox - C/C++ - 清泛网 - 专注C/C++及内核技术

CreateWindow()动态创建一个EditBox在Win32代码或MFC代码中动态创建一个EditBox:在OnInitDialog()函数中: 创建EditBox HWND m_wndEdit = CreateWindow(_T("EDI...在Win32代码或MFC代码中动态创建一个EditBox: 在OnInitDialog()函数中: // 创建Edit...
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c++ 代码提升权限,请求管理员身份运行权限 - C/C++ - 清泛网 - 专注C/C++及内核技术

...,请求管理员身份运行权限普通的启动一个程序使用CreateProcess函数,有时会遇到权限不足失败的情况,那么如何提升执行权限呢?使用ShellExecuteEx函数: ------ 普通的启动一个程序使用CreateProcess函数,有时会遇到权限不足失...
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Poco::Timer 用法剖析 - C/C++ - 清泛网 - 专注C/C++及内核技术

Poco::Timer 用法剖析Poco::Timer 提供了定时任务的功能,从线程池中创建一个线程,每隔一段时间让线程中的主体代码执行一次。其余时间此线程阻塞在Event.trywa...Poco::Timer 提供了定时任务的功能,从线程池中创建一个线程,每隔一...