一个客户联系管理（CRM）系统，可以轻松建立客户联系方式，并且进行客户售后跟踪和服务支持-a customer contact management (CRM) system, can easily build customer contacts, as well as for after-sales tracking and customer service support

本源程序是一个聊天工具，有客户端和服务端，其功能跟QQ相似。-This source is a chat tool, client and server, and its function is similar to QQ.