该程序在TC3.0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。

-The program in TC3.0 environment compiler, a total of five functions. Namely Introduce, shortestdistance, floyed, display and main.

Its functions are:

Introduce: Location introduce functions.

Shortestdistance: calculate the shortest distance between the two places.

Floyed: floyed algorithm for the shortest distance between the two places.

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

Main: the overall control function and provide the raw data.