飞机订票系统 通过此系统可以实现如下功能： （1）录入：可以录入航班情况（数据...要求：根据以上功能说明，设计航班信息，订票信息的存储结构，设计程序完成功能-Aircraft booking system can be achieved through this system, the following functions: (1) Input: You can input flight conditions (data ... Requirements: According to the