航空定票系统 JBUILDER 编程实现 线性表应用

用vc设计一个航空客运订票系统，该订票的业务活动包括：查询航线、客票预订和办理退票等。-Vc design with an air passenger booking system, the booking of business activities include: query routes and ticket reservations, etc. for a refund.

航空订票系统,该系统功能实现机票查询,退订修改等操作-Airline booking system, the system function realization ticket inquiries, unsubscribe revision of operating