说明：  本软件旨在根据旅客的要求设计出行路线并输出，同时系统能模拟旅客所在的地点和状态，目标为为旅客提供能完美的出行计划。
(The purpose of this software is to design and output travel routes according to passengers'requirements. At the same time, the system can simulate the location and status of passengers. The goal is to provide perfect travel plans for passengers.)