#include <iostream>
#include <stdio.h>
#include <windows.h>

using namespace std;

int main()
{
    //system("color 47");
    SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), BACKGROUND_RED | FOREGROUND_GREEN);
    cout << "Hello world!" << endl;
    cout << "\033[41m"<<"abc"<<endl;
    return 0;
}

需要引入头文件：
windows.h
函数原型：
BOOL SetConsoleTextAttribute( HANDLE hConsoleOutput, WORD wAttributes );
wAttributes 的取值含义对应如下：

Attribute        Meaning
FOREGROUND_BLUE        Text color contains blue.
FOREGROUND_GREEN        Text color contains green.
FOREGROUND_RED        Text color contains red.
FOREGROUND_INTENSITY        Text color is intensified.
BACKGROUND_BLUE        Background color contains blue.
BACKGROUND_GREEN        Background color contains green.
BACKGROUND_RED        Background color contains red.
BACKGROUND_INTENSITY        Background color is intensified.
COMMON_LVB_LEADING_BYTE        Leading byte.
COMMON_LVB_TRAILING_BYTE        Trailing byte.
COMMON_LVB_GRID_HORIZONTAL        Top horizontal.
COMMON_LVB_GRID_LVERTICAL        Left vertical.
COMMON_LVB_GRID_RVERTICAL        Right vertical.
COMMON_LVB_REVERSE_VIDEO        Reverse foreground and background attributes.
COMMON_LVB_UNDERSCORE        Underscore.

非常感谢！！！！！