该程序在C环境下编译通过，共有5个函数。分别是Introduce，shortestdistance，floyed，display及main。

其功能分别是：

Introduce：地点介绍函数。

Shortestdistance：计算两地的最短距离。

Floyed：floyed算法求两地的最短距离。

Display：打印两个地点的路径及最短距离至屏幕。

Main：总体控制各函数并提供原始数据。

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Procedures in the C environment compiled through, a total of 5function. Are Introduce, shortestdistance, Floyed, display and main.

Its functions are:

Introduce: place of presentation function.

Shortestdistance: compute the shortest distance.

Floyed: Floyed algorithm for the shortest distance.

Display: print two locations of the path and the shortest distance to the screen.

Main: overall control function and provides original data.