After logging in the same operation user type, there should be corresponding operation page and operation authority.Teacher login: with the corresponding operation authority of performance management, after the user logs in, it checks whether the login is successful through data verification, so as to avoid directly entering the address for access and other illegal methods of operation.Student login: the user has the operation authority to query the results. After logging in, the user checks whether the login is successful through data verification. When querying the results, the student number obtained by the student login is used to query the student's performance data of each semester and course in the database, and return to the front desk for display.