一个通讯录系统，系统中保存着各人员的姓名、电话、住址、邮编等信息，通过该系统的界面可以浏览这些信息，也可以插入、添加及删除某个人员的信息。-An address book system, the system kept the officers name, phone, address, Zip code and other information through the system interface can browse the information, you can insert, a