C/C++——如何在控制台中绘制进度条

效果：

函数功能：

输入一个0~1的double p，在控制台中当前光标位置开始使用当前字符颜色绘制对应长度的进度条。

void gotoxy(int x,int y)
{
    COORD pos;
    pos.X=x;
    pos.Y=y;
    SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),pos);
}
void drawbar(double p)
{
    int i;
    if(p>=0.99999999)
    {
        for(i=10; i--; i>0)cout<<"█";
        return;
    }
    int a;
    CONSOLE_SCREEN_BUFFER_INFO xy;
    GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE), &xy);
    for(i=10; i--; i>0)cout<<"  ";
    gotoxy(xy.dwCursorPosition.X,xy.dwCursorPosition.Y);
    a=(int)(p*10);
    for(i=a; i--; i>0)cout<<"█";
    if(a==10)return;
    i=(int)((p*10-(int)(p*10))*8);
    switch(i)
    {
    case 0:
        cout<<"  ";
        break;
    case 1:
        cout<<"▏";
        break;
    case 2:
        cout<<"▎";
        break;
    case 3:
        cout<<"▍";
        break;
    case 4:
        cout<<"▌";
        break;
    case 5:
        cout<<"▋";
        break;
    case 6:
        cout<<"▊";
        break;
    case 7:
        cout<<"▉";
        break;
    }
    for(i=9-a; i--; i>0)cout<<"  ";
}