学生管理系统分三个模块：管理员，教师，学生。管理员有增、删、查、改的功能；教师有改学生成绩功能，学生有查看自己信息的功能-Student management system is divided into three modules: Administrators, teachers and students. Administrators have to add, delete, search, change of function teachers have to change the f

包含学生系统的各个实现文件,包括学生文件，教师文件，管理员文件以及各个点C文件的H文件-inlude files needed in programming the student system