这是以前做的一次课程设计，是用C语言写的一个学生成绩管理系统，用来实现对学生成绩管理，成绩查询，成绩统计功能，并且每一个操作还有一些相关操作-This is done before a course design is the use of C language written in a student achievement management system that is used to achieve student performance management, performance information, performance statistics functions, and each operation there are a number of related operations