成绩管理系统，基于QT与SQL SEVER 2008 的小程序，分为老师，学生，管理员 三个权限。

学生能查看并且修改部分个人信息，但只能查看成绩；老师能在学生功能上加上修改 自己科目的成绩；管理员能增加个人信息与课程信息-Performance management system, based on QT and SQL SEVER 2008 a small program, divided into teachers, students, administrators three rights. Students can view and modify some of your personal information, but can only view the results　teacher students function in subjects with the results to modify their own　administrator can increase the personal information and course information