数据结构用C语言编写通讯录管理系统任务：通过此系统可以实现如下功能..录入：录入新的通讯信息（包括姓名、通讯地址、邮编、联系电话）查询：可按照姓名进行查询相关信息修改：可修改相关信息-Data structure book using C language task management system: This system can be achieved through the following functions .. entry: entry of new communications and information (including name, address, zip code, telephone number) query: the query in accordance with the relevant information changes name : relevant information can be modified