学生成绩管理系统，用C语言编写，一个C语言课程设计，里面有对程序的详细的解释，有九大功能，输入、查找、排序、插入、删除、保存、读取-Student achievement management system, written in C, a C language curriculum design, which has a detailed explanation of the program, there are nine functions, input, search, sort, ins