拥有客户端和服务器的网络聊天程序，可以群聊，也可以私聊，还可以发送和接受文件，是一款功能比较强的程序。-Client and server has a network chat program, you can group chat can also be私聊, you can send and receive documents, is a relatively strong function of the procedure.

本案例是一个网络聊天工具的实现，提供了基本的聊天的功能，通过此例能学习到如何利用Socket建立服务器程序和客户端程序以及关于多进程间调度等方面的知识-This case is a network chat tool, providing the basic chat functions, through this case study into how to set up Socket server and client procedures and processes regarding m