内容：

处于不同目的的旅客对交通工具有不同的要求。例如，因公出差的旅客希望在旅途中的时间尽可能短，出门旅游的旅客则期望旅费尽可能省，而老年旅客则要求中转次数最少。编制一个全国城市间的交通咨询程序，为旅客提供两种或三种最优决策的交通咨询。

要求：

1.提供对城市信息进行编辑（如：添加或删除）的功能。

2.城市之间有两种交通工具：火车和飞机。提供对列车时刻表和飞机航班进行编辑（增设或删除）的功能；

3.提供两种最优决策：最快到达或最省钱到达。全程只考虑一种交通工具。

4.旅途中耗费的总时间应该包括中转站的等候时间。

5.咨询以用户和计算机的对话方式进行。由用户输入起始站、终点站、最优决策原则和交通工具，输出信息：最快需要多长时间才能到达或者最少需要多少旅费才能到达，并详细说明依次于何时乘坐哪一趟列车或哪一次班机到何地。

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Content:

Travellers are different purposes for different transport requirements . For example , travelers on business trip in the hope of time as short as possible , passengers travel out of province expect possible travel , and elderly passengers asked the least number of transit . The preparation of a national inter-city transportation consulting program for two or three passengers optimal decision of the Transport Advisory .

Requirements:

1 provides information on the city editor ( such as: adding or deleting ) function.

(2) There are two modes of transport between the city : trains and airplanes. Schedules for the train and flights for editing ( created or deleted ) function　

3 provides two optimal decision : reach the fastest or the most money arrived . Consider only a means of transport throughout .

4 . The total time spent on the trip should include a transit station waiting time .

5 . Consultation with users and computers dialogue conducted . Entered by the user start