这是一个可以帮助老师管理学生成绩的系统，老师通过这个系统可以修改学生各科成绩，也可以删除某个学生信息，添加某个学生信息，还可以把这个成绩变成文本形式，进行打印，另外还可以分类排名，可对总分排名，也可以各科排名-This is a can help teachers manage student performance system, the system can be modified by the teacher student all subjects, students can also delete a message, add a student information, you can put this result into a text form, print, It also can be categorized ranking score ranking can be subjects ranking, etc.