学生信息的添加，删除，修改，查询，显示 查询：按学号，姓名查询 修改：根据学号，姓名进行修改 此程序再继续维护中敬请期待(Student information add, delete, query, display Query: by school number, name query Modification: the name is modified according to the school number Please look forward to this progr