适合校园内部的即时通讯，采用tcp/ip协议-Campus fit within the instant messaging, the use of tcp/ip protocol

In this article w ill look at how to program using sockets by implementing an echo server along with a client that we will use to send and receive string messages. I will start off by giving a quick introduction to TCP/IP fundamentals and then ex

windows下socket编程，利用UDP协议通信，运行在控制台环境下，适合应付网络课程通信编程的作业。-the windows socket programming, using UDP protocol communications, running on the console environment, fit for the online course communication programming jobs.