实现简单的学生和教师的管理，实现了学生基本信息管理以及成绩的管理。教师员工的基本信息，以及删、查、修、添。(To achieve simple management of students and teachers, to achieve the basic information management of students and management of results. The basic information of teachers and staff, as well as deleting, checking, repairing and adding.)