此系统的主要管理的信息有：联系人的姓名,联系人的号码本系统的主要功能有联系人的添加、删除、插入、显示可以随时查找修改通讯录实现主要功能-The main management information system are: contact name, contact number of the main functions of the system have to add contacts, delete, insert, modify the display can always find the contacts to achieve the main function