In this paper the principles of programming computer communication are analyzed, the solutions of writing TCP/IP network communication program using Microsoft Foundation Classes(MFC) socket classes: CAsyncSocket and CSocket is put forword.

• 分析了利用 Windows Sockets进行网络通信程序的基本原理，给出了利用 MFC的套接字类 CAsyncSocket，CSocket编写 TCP/IP网络通信程序步骤和方法。