主要功能是可以实现在两个不同电脑上进行聊天，不论是局域网还是互联网都可以。该程序是根据一个控制台程序修改而来，该控制台程序有两个类，服务器类和客户端类。通过修改我把这两个类里面的功能整合到了一块，服务器和客户端都在一个程序里面，使得使用更加简洁。不管是作为服务器还是客户端都使用这一程序即可。-Main function is to be achieved in two different computers to chat, either LAN or the Internet can be. The program is based on a procedure adapted from the console, the console program has two classes, server classes and client classes. I put two classes by modifying the function inside integrated into a server and client are in a program which makes use of more concise. Either as a server or a client can use this program.