说明：  使用WIN_API函数编写，非常简单的程序，适合初学WIN的朋友参考。运行后可以看见屏幕开始下雪，而且随着时间推移会越下越多，没有界面，结束程序需要在任务管理器删除进程。谨供娱乐学习^^。
(Use WIN_API function written in a very simple procedure, suitable for beginners WIN a friend for reference. After running you can see the screen started to snow, but over time would get under the more there is no interface to end the program needs to delete the process in Task Manager. Would like to learn for fun ^ ^.)