本文介绍了CAsyncSocket、CSocket类，并用CSocket类编写了一个简单实用的网络聊天程序。读者还可以通过MFC CArchive 对象进行信息的收发操作，使得网络传输如同使用MFC的文档连载协议(Serialization protocol)，简捷易用。-This paper introduces CAsyncSocket, CSocket class, and Class CSocket prepared a simple but useful web chat program. Readers can also MFC CArchive object to send and receive information to operate, making use of network transmission as MFC serialization protocol document (Serialization protocol), simple-to-use.