实现对学生资料的查询、删除、增加和修改，老师可以实现以上所有功能，而学生只能查询。...

实现对学生资料的查询、删除、增加和修改，老师可以实现以上所有功能，而学生只能查询。-Information on the implementation of the students information, delete, and modify the increase, teachers can achieve all of the above functions, and students can only query.