TCP/IP网络异步通信，类QQ网络即时聊天工具，服务器端和客户端界面和程序编写。-TCP/IP network asynchronous communication, like instant messaging tool QQ network, server and client interface and programming.

TCP/IP网络同步通信，类QQ网络即时聊天工具，服务器端和客户端界面和程序编写。-TCP/IP network synchronous communication, like instant messaging tool QQ network, server and client interface and programming.

类似于qq的聊天工具，采用socket编程，用于了多线程，select，还有心跳机制，守护进程！-Similar to qq chat tool, using socket programming for a multi-threaded, select, and heartbeat mechanism, the daemon!