用双向链表，文件读写的知识编写简单的通讯录，可记录姓名、性别、出生年月日、邮编、地址、电话号码等内容。可从第一条显示、从最后一条显示，可实现上翻下翻浏览。可进行添加、删除、插入、查找、保存、退出等通讯录的基本操作。界面友好，输入输出更具人性化，实现键盘响应，有操作提示，便于使用者上手操作。-with two-way linked list, document literacy knowledge of the preparation of simple correspondence, it can record the name, gender, date of birth, zip code, address, telephone number and so on. From the first of the show from the last one that can be turned on over the next visit. Can be added, deleted, inserted, identify, preserve, such as directories from the basic operation. Friendly interface, input and output more humanized, keyboard response, tips, user-friendly operation of the business.