本程序是用java编写的一些关于arq协议实现的小程序，欢迎参考-this program is to prepare some of java arq protocol on the small procedures, welcomed the reference

本程序是用java编写的一些关于arq协议实现的小程序，欢迎参考-this program is to prepare some of java arq protocol on the small procedures, welcomed the reference