电信的计费信息挖掘系统，使用QT开发，压缩包妹密码，内附简单的开发文档-Telecom billing information mining system, developed using the QT, compressed sister password, included the development of a simple document

网吧计费管理系统,这个程序主要分析客户端的功能-Internet cafe billing management system, the program is mainly analysis the client functions