说明：  航空客运订票系统C++文件操作 飞机场每天要接受大量的订票退票服务，还有互联 网上的异地订票等。对这些数量巨大的数据，需要一个专门的软件来进行管理和操作。软件至少需要具备的基本功能包括：接受订票，处理退票，查询乘客信息，查询航班信息等等。
(Air passenger booking system C++ File operations airport every day to accept a large number of booking refund services, as well as on the Internet, such as remote booking. Of these large quantities of data, the need for a specialized software for management and operation. Software requires at least the basic features include: acceptance of booking, processing refunds, query passenger information, check their flight information and so on.)