c++编写的简单的民航票务系统源码 实现定退票以及一些简单的管理功能-c++ prepare a simple civil aviation ticketing system source code to achieve a given refunds as well as some simple management functions

该系统要求用C语言实现一个简单的民航票务系统，能实现机票信息管理、机票查询、航班统计等功能，并提供预订及退票服务.(A simple civil ticket system is realized by using C language, which can achieve the following functions such as ticket information management, ticket inquiry, flight statistics, and booking an