控制台清屏

void   clrscr(int x,int y)   
{   
    HANDLE   hConsole=GetStdHandle(STD_OUTPUT_HANDLE);   
    //MyCls(hStdOut);
    
    //HANDLE hConsole=hStdOut;
    COORD coordScreen={x,y};//设置清屏后光标返回的屏幕左上角坐标   
    BOOL bSuccess;   
    DWORD cCharsWritten;   
    CONSOLE_SCREEN_BUFFER_INFO   csbi;//保存缓冲区信息 
    
    
    DWORD   dwConSize;//当前缓冲区可容纳的字符数   
    
    bSuccess=GetConsoleScreenBufferInfo(hConsole,&csbi);//获得缓冲区信息   
    //PERR(bSuccess,"GetConsoleScreenBufferInfo");   
    dwConSize=(csbi.dwSize.X-x)   *   (csbi.dwSize.Y-24);//(缓冲区容纳字符数目)要清空的面积，X是列数减去6列，Y默认是25，减去
    //24等于1，x默认是80减去6等于74，因为光标定位在第0行第6列，所以就是
    //清空第0行的第7列开始到第0行的结尾
    //dwConSize=csbi.dwSize.X * csbi.dwSize.Y;
    //用空格填充缓冲区   
    
    bSuccess=FillConsoleOutputCharacter(hConsole,(TCHAR)' ',dwConSize,coordScreen,&cCharsWritten);   
    //PERR(bSuccess,"FillConsoleOutputCharacter");   
    
    bSuccess=GetConsoleScreenBufferInfo(hConsole,&csbi);//获得缓冲区信息   
    //PERR(bSuccess,"ConsoleScreenBufferInfo");   
    
    //填充缓冲区属性   
    bSuccess=FillConsoleOutputAttribute(hConsole,csbi.wAttributes,dwConSize,coordScreen,&cCharsWritten);   
    //PERR(bSuccess,"FillConsoleOutputAttribute");   
    
    //光标返回屏幕左上角坐标   
    bSuccess=SetConsoleCursorPosition(hConsole,coordScreen);   
    //PERR(bSuccess,"SetConsoleCursorPosition");   
    return;   
}

clrscr(0,0);

printf("count = %d",cc);