学生成绩管理系统，实现功能比较全，分为学生登录和教师登陆两大权限。教室登陆后，可对学生信息进行查询，成绩进行查询、统计，增删查改等功能；学生登录后仅能查看自己的成绩和修改自己的个人信息。-Student achievement management system, feature comparison, teachers and students log into landing two rights. After landing the classroom, students can quer