一个小例程，通讯录管理程序。建立一个通讯录，存放有姓名、电话号码、住址等，具备输入、查找、添加、修改及删除等功能。-A little routine, contact management program. The establishment of an address book, storing names, phone numbers, address, etc., with the input, search, add, modify and delete functions.