基于单链表的班级通讯录

说明：  将全班同学的通讯信息存入一个单链表。元素中的通讯信息包括每一位同学的：学号、姓名、性别、宿舍、联系电话等。要求能够利用姓名和序号进行有关查找、插入、删除等操作。
(Save the whole class's communication information into a single - chain table. The communication information in the element includes every student: school number, name, sex, dormitory, telephone and so on. It is required to be able to use name and serial number for search, insert, delete and other operations.)