该项目主要的作用的电信计费系统。该系统主要针对两种用户：第一，普通用户，可以进行预订实验室、修改个人资料等操作；第二：管理员用户。-The project mainly of the role of telecom billing system. The system mainly focused on two kinds of users: first, the average consumer, can undertake reservation laboratory, modify the