这个是实现usb插拔的jar包，导入后相当管用，把他放在项目的lib下，然后就可以使用啦，这个是Windows的系统使用，谢谢(This is a usb plug-pulled jar, which is quite useful after the import, put him under the project lib, and then you can use it. This is the Windows system for use, thank you)

java开发usb通信所需要的jar包。方便下载(Java developing the jar package for USB communication)