主要利用c语言的文件操作能力设计开发一个小型的飞机订票系统，至少具有如下功能：信息读出，可以查看全部航班信息和查询一个航班信息。可以进行添加（再添加过程中有重复显示提示信息）、删除、订票等基本操作。-File manipulation capabilities of the c language design and development of a small airline reservation system, at least the following functions: information read out all the flight information you can view and query a flight information. Can be added (and then add the process to repeat the message), delete, ticketing and other basic operations.