问题描述：用无向图表示你所在学校的校园景点平面图，图中顶点表示主要景点，存放景点的编号、名称、简介等。

设计要求：

1．查询各景点的相关信息；

2．查询图中任意两个景点间的最短路径；

3．查询图中任意两个景点间的所有路径。

-Problem Descr iption: The undirected graph that spot in your school campus plan, said the main attractions of vertices, the number of storage sites, name, profile and so on. Design requirements: 1. Query information about tourist attractions　2. Query graph in any shortest path between two sites　3. Query graph between any two spots of all paths.