这个代码演示了通过和显示器垂直扫描同步对图形进行无闪烁绘制的技术。由于在VB中使用了汇编，所以对不同的操作系统的兼容性不佳，但仍然是很好的代码！-This code demonstrates the vertical scan through and display synchronized flicker-free drawing on graphics technology. As used in the VB Series, so the poor compatibility of different operating systems, but still a good code!