题目：编制一个求出网中最短路径的程序.

问题描述:计算一个有向网中位置为0 的点到其余各顶点的最短路径，以一个网状的带权有向图G6为测试内容

-Topic: establishment of a network to derive the shortest path procedure. Problem Descr iption: Calculate a network location to the point of 0 to the remaining vertex of the shortest path to a network of weighted directed graph to test the contents of G6