采用C/S架构，使用了TCP通信协议，实现了注册，登陆，群聊，私聊，用户管理的功能。-the chatroom is structured by c/s mode,which is supported by tcp protocal.You can chat in private or public ways with the chatroom,and the server has the privilege to manage use

linux 下的聊天室，使用多线程编程。-linux chat rooms, use of multi-threaded programming.