简单通讯录管理程序功能

①　　增加记录，可选择增加数目

②　　删除记录，可选择删除单个或多个

③　　显示所有记录，十个一屏

④　　按姓名查找并显示一条记录

⑤　　按姓名查找并更改一条记录

⑥　　从一个正文文件添加记录

⑦　　把目前的记录存入一个正文文本

⑧　　更改排序关键字并排序

⑨　　删除所有记录

⑩　　退出系统

-Simple contact management program features ① increase the recording, you can choose to increase the number ② delete records, you can choose to delete individual or multiple ③ show all records, ten ④ Find a screen displays a record by name and by name ⑤ find and change a record ⑥ ⑦ add records from a text file to the current record is stored in a body text ⑧ ⑨ change the sort key and sort ⑩ exit the system deletes all records