"航班信息管理系统：查询、添加、删除、修改，找出最低价航班"

The flight information management system is designed to handle all flights departing from Tianjin in 2011. Users can input their destination and desired time to search for available flights, with the system displaying the cheapest option. Additionally, the system allows for the creation, addition, deletion, and modification of flight information in the database. The system is divided into several modules, including the main program module which initiates the process, the flight information management module which oversees the querying, sorting, and manipulation of flight data, and the flight creation, deletion, and modification modules which enable users to make changes to the database. Other modules include the function for finding the minimum price of a flight, as well as adding and searching for flights. Overall, the system aims to provide users with a comprehensive platform for managing and accessing flight information efficiently and effectively. With its user-friendly interface and diverse functionalities, the flight information management system offers a valuable tool for travelers and airline professionals alike.