每个c语言初学者必做的学生成绩管理系统，里面都只用了很基本的c语法，没什么技术含量可言，纯碎为了巩固所学的c语法。文件流保存在相对路径下的student.dat文件中-Beginners will do each c language student achievement management system, which only use a very basic c grammar, no technical content at all, pure crushed in order to