编写一个简单的通讯录管理程序。通讯录记录有姓名，地址(省、市(县)、街道)，电话号码，邮政编码等四项。功能有：添加、显示、存储、装入、查询、修改-Write a simple contact management program. Book records the names, addresses (province, city (county), street), phone number, zip code and other four. Functions: add, display, s