TCP/IP通信编程的简单实现，能进行文件发送，对话，图形界面。对connect，accept等阻塞函数采用了单独的thread进行处理，使得界面不至于出现假死。发送文件等也都采用了单独的thread。软件总体上算是常规Tcp/Ip通信小程序的多线程版。-A tcp/ip communication software.For the function lick accept and connect,I used the multithread to deal with them,so does