用codeblocks编写的用来实现数据结构中的链表建立、排序、合并问题（实现了四个班级成绩的排序）-With codeblocks write used to realize data structure of chain table set up, sort, merger problem (realize the four class performance sort)

通用题库管理系统，具有题目录入，自动组卷等功能-General question bank management system, has the problem input, automatic generating test paper and other functions