Windows程序设计--制作简易消息框

#include <windows.h>

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow)
{
int result;
int flag = 1;
while (flag)
{
result = MessageBox(NULL, TEXT("你是猪吗？"), TEXT("提醒"), MB_YESNO);

if (result == IDYES)
{
result = MessageBox(NULL, TEXT("嗯，知道就好！"), TEXT("提醒"), MB_OK);
result = MessageBox(NULL, TEXT("重试吗？"), TEXT("提醒"), MB_RETRYCANCEL);
if (result == IDRETRY) flag = 1;
else flag = 0;
}
else
result = MessageBox(NULL, TEXT("你睁大眼睛瞧瞧，你就是只猪啊！"), TEXT("提醒"), MB_OK);
}

return 0;
}