实现了局域网聊天室的基本功能!界面友好,可以自动选择是否将本机作为服务器,使用方便!适用java初学者,希望能给你有所帮助!-Achieve the basic functions of a LAN chat rooms! Friendly interface, and can automatically select whether the machine as a server, easy to use! Apply java beginner, I hope you can help!