该程序用来实现对链表进行节点的插入，删除操作，并且逐个打印出链表的数据域值等几项基本功能，并且能够显示链表的结点个数。-The program used to implement linked list for node insert, delete, and print out the list one by one the number of data field values ​ ​ and other basic functions, and can display