航空订票系统，数据结构课程设计源代码，包括订票，退票，浏览，查单航线-Airline booking systems, data structures curriculum design source code, including the booking, refund, browse, search, single route

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