Introduction - If you have any usage issues, please Google them yourself
(1). To realize the login interface of the manager and the function of management.
(2). The function of inquiring the students' name, age, sex, age, and achievement.
(3). The function of increasing students' name, age, sex, age, and achievement.
(4). The function of modifying the student's name, age, sex, age, and achievement.
(5). The function of realizing the deletion of students' name, age, sex, age, and achievement.