创建一个简易手机号码管理系统。假设系统中每个号码记录包括电话号码,姓名,话费，

地址，是否挂失。2,剩余金额3,手机缴费，注销，保存。及用户信息，课程信息，用户信息的修改、删除和查询等程序的运行效果如下图所示，选择任意菜单后，实现相应功能。-Create a simple cell phone number management system.Assume that each number in the system records including telephone number, name, phone,

Address, whether to report the loss.2, the remaining amount 3, mobile payment, cancellation, save.And user information, course information, modify, delete, and query of user information program running effect as shown in the figure below,　any menu, implement the corresponding function.