通讯录，实现增加，删除等功能的通讯录。通讯录， 实现增加，删除等功能的通讯录。-Contacts, to achieve to add, delete and other functions of the address book. Contacts, to achieve to add, delete and other functions of the address book. Contacts, to achieve to add, delete and other functions

Python is an ideal language for solving problems, especially in Linux and Unix networks. With this pragmatic book, administrators can review various tasks that often occur in the management of these systems, and learn how Python can provide a more ef