文件传输，聊天，数据库后台管理，基本上能有QQ的功能-File transfer, chat, database admin, basically a function of QQ

这不是我编的，但很好，c/s结构的，包括服务端和客户端，对学生们都有一定帮组，-This is not my code, but very good, c/s structure, including server and client, help the students have a certain group, huh, huh