学生成绩管理系统主要提供成绩查询,方便管理的网上的信息查阅平台, ,查看留言,提交留言.教师可以通过成绩管理系统查阅学生成绩信息,教师信息,查看教师留言,学生留言,提交留言,留言的管理等相关操作.系统管理员可以学生可以通过该系统查阅与自己相关信息实现以上的所有功能,还有对学生的添加,删除,修改,教师的添加,删除,修改,数据库的备份,数据库的还原等相关操作. -The main provider of student achievement management system query results to facilitate the management of online information access platform, view messages, submit a comment. Teachers can access through the performance management system, information on student achievement, teacher information, view the teacher a message, the students shout, to submit a message, message management and other related operations. System administrators can access to students through the system to achieve the above information with their own all the features, as well as for students to add, delete, modify, teachers, add, delete, modify, database backup, database reduction and other related operations.