windows std::cout设置输出颜色

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本文介绍了一个简单的C++库，用于在控制台输出中为std::cout添加颜色效果。通过定义内联函数和重载流插入运算符，可以轻松地改变文本的颜色。支持的颜色包括蓝色、红色、绿色、黄色和白色等。

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包含头文件ConsoleColor.h

std::cout << red << "this text is read" << std::endl;
std::cout << green << "this text is green" << std::endl;

// ConsoleColor.h

#pragma once
#include <iostream>
#include <windows.h>

inline std::ostream& blue(std::ostream &s)
{
    HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE); 
    SetConsoleTextAttribute(hStdout, FOREGROUND_BLUE
              |FOREGROUND_GREEN|FOREGROUND_INTENSITY);
    return s;
}

inline std::ostream& red(std::ostream &s)
{
    HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE); 
    SetConsoleTextAttribute(hStdout, 
                FOREGROUND_RED|FOREGROUND_INTENSITY);
    return s;
}

inline std::ostream& green(std::ostream &s)
{
    HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE); 
    SetConsoleTextAttribute(hStdout, 
              FOREGROUND_GREEN|FOREGROUND_INTENSITY);
    return s;
}

inline std::ostream& yellow(std::ostream &s)
{
    HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE); 
    SetConsoleTextAttribute(hStdout, 
         FOREGROUND_GREEN|FOREGROUND_RED|FOREGROUND_INTENSITY);
    return s;
}

inline std::ostream& white(std::ostream &s)
{
    HANDLE hStdout = GetStdHandle(STD_OUTPUT_HANDLE); 
    SetConsoleTextAttribute(hStdout, 
       FOREGROUND_RED|FOREGROUND_GREEN|FOREGROUND_BLUE);
    return s;
}

struct color {
    color(WORD attribute):m_color(attribute){};
    WORD m_color;
};

template <class _Elem, class _Traits>
std::basic_ostream<_Elem,_Traits>& 
      operator<<(std::basic_ostream<_Elem,_Traits>& i, color& c)
{
    HANDLE hStdout=GetStdHandle(STD_OUTPUT_HANDLE); 
    SetConsoleTextAttribute(hStdout,c.m_color);
    return i;
}

// Copyleft Vincent Godin

from:http://www.codeproject.com/Articles/16431/Add-color-to-your-std-cout