控制台下改变背景或字体颜色

用 system("color 0A"); 

其中color后面的0是背景色代号，A是前景色代号。各颜色代码如下： 

0=黑色 

1=蓝色 

2=绿色 

3=湖蓝色 

4=红色 

5=紫色 

6=黄色 

7=白色 

8=灰色 

9=淡蓝色 

A=淡绿**=淡浅绿色 

C=淡红色 

D=淡紫色 

E=淡黄色 

F=亮白色 

2.改变下一个输出或者输入字体和背景的颜色

采用SetConsoleTextAttribute函数，如

White on Black：

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |

FOREGROUND_RED | FOREGROUND_GREEN | FOREGROUND_BLUE);

Red on Black：

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |

FOREGROUND_RED);

Green on Black：

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |

FOREGROUND_GREEN);

Yellow on Black：

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |

FOREGROUND_RED | FOREGROUND_GREEN);

Blue on Black：

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |

FOREGROUND_BLUE);

Magenta on Black：

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |

FOREGROUND_RED | FOREGROUND_BLUE);

Cyan on Black：

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),FOREGROUND_INTENSITY |

FOREGROUND_GREEN | FOREGROUND_BLUE);

Black on Gray：

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),BACKGROUND_INTENSITY |

BACKGROUND_INTENSITY);

Black on White：

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),BACKGROUND_INTENSITY |

FOREGROUND_INTENSITY | BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE);

Red on White：

SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE),BACKGROUND_INTENSITY |

FOREGROUND_INTENSITY | BACKGROUND_RED | BACKGROUND_GREEN | BACKGROUND_BLUE |

FOREGROUND_RED);

等等。

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.