程序代码：

# include <windows.h>
# include <stdafx.h>

int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
     int te = MessageBox(NULL, TEXT("你是地球人吗？"),
        TEXT("提问"), MB_YESNO|MB_ICONQUESTION);

    if (IDYES == te)
    {
        te = MessageBox(NULL, TEXT("确认失败，请选择："),
            TEXT("确认失败"), MB_RETRYCANCEL|MB_ICONHAND);
    }
    else
    {
        MessageBox(NULL, TEXT("火星人您好"),
            TEXT("确认成功"), MB_OK|MB_ICONASTERISK);
    }

    if (IDRETRY == te || IDCANCEL == te)
    {
        if (IDRETRY == te)
        {
            MessageBox(NULL, TEXT("请回去继续做火星人吧！"),
                TEXT("重试失败"), MB_OK|MB_ICONHAND);
        }
        else
        {
            MessageBox(NULL, TEXT("你总算是认清了自己了！"),
                TEXT("火星人您好"), MB_OK|MB_ICONASTERISK);
        }
    }

    return 0;
}