课程的选择与查询系统，对选修课与必修课进行管理，也可以对课程表进行管理与查询。使学生更好地掌握自己的学习信息。登入的用户名和密码都是“1”-Course selection and query system for the management of elective and required course, the curriculum can also be managed with the query. Enable students to better learn to control