求一个用于管理朋友信息的程序同时可以提供给用户进行添加，删除，修改的功能。
设计一个用于管理朋友信息的程序。将朋友信息（年龄、姓名、电话）存放在MyFrd.dat中，从文件读出这些信息并显示，并能按姓名(要求可简化输入，如只输入姓氏便可查询)进行查询，将查 询信息输出屏幕。同时可以提供给用户进行添加，删除，修改的功能。
------解决方案--------------------
经典的curd。。。。。。。
------解决方案--------------------
这个是一个小新闻系统改变过来的。
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