系统应具有售票、查询、管理和维护等功能，系统管理员可以进行对车次的更改、票价的变动及调度功能，车次调度可通过对发车时刻表的修改来进行，维护功能即可对表进行修改。...

代码说明：

系统应具有售票、查询、管理和维护等功能，系统管理员可以进行对车次的更改、票价的变动及调度功能，车次调度可通过对发车时刻表的修改来进行，维护功能即可对表进行修改。-System should have the ticket, query, management and maintenance functions, the system administrator can change on the trips, the fare changes and scheduling functions, scheduling trips to the departure schedule could be adopted to carry out modifications, maintenance functions can be on the table be modified.