成绩查询系统，学生通过自己的学号、密码登录后，可以按学期、课程名称等来查询自己的课程成绩，管理员可以按照班级或学生来登记学生成绩，可以编辑、删除学生的课程成绩，系统具有设置管理员权限等功能-Results inquiry system, students through their Student ID and password to log on, you can press the semester, course name to check their course grade administrator to register in accordance with the class or student student achievement, you can edit, delete a student' s course grade, system has set administrator privileges