学生考勤系统，管理员对学生进行管理，请假，以及上课签到等功能，包括登录页面修改密码等-Student attendance system administrators manage students, leave, as well as school attendance and other functions, including the login page to change the password, etc.

老师上课 学生签到功能，拥有用户管理，班级管理，学生管理，上课签到功能(Teachers sign in for class)