主要有三个模块、登录模块，教师信息模块，学生信息模块。其实登录模块有两个登录角色：教师端和学生端。可以分别对信息进行编辑。,There are mainly three module, login module, teacher information module, the student information module. In fact login module has two login role: the teacher end and students end. Can edit