自己写的，可以自动检测u盘的小程序。插入u盘后可自动提示。-Wrote it myself, can automatically detect u disk of small programs. U can be automatically inserted after-hours prompt.

这个小例子虽然很简单，但却很实用，它完成了自动监测U盘等移动设备在插入或拨出电脑时弹出提示，当然你可能需要的不是它弹出提示，而是判断是否有设备插拨，不过稍微改一下就能满足你的需求了。-This small example is very simple, but very practical that it has completed the automatic monitoring of U disk and other mobile devices to insert or set aside