该程序可以进行通讯录的基本操作：新建，打开，添加，删除，查找，显示所有记录等功能。
The program can list the basic steps: the new, open, add, delete, search, show all records and other functions.
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 book, kept the name, phone number, address, etc., with the input, find, add, modify and delete functions.
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