包括顺序链表的查找，删除，插入，计数，和删除重复元素等操作，是我的数据结构家庭作业，大家可以参考一下，欢迎多提意见！-including sequence Chain search, delete, insert, calculators, and the deletion of repeat elements and other operations, I is the data structure of a family operation, we can take a look, please speak up!