用无向网表示你所在学校的校园景点平面图，图中定点表示主要景点，存放 景点的编号、名称、简介等信息。要求能够回答有关景点介绍、游览路经等问题。

要求：(1)查询各景点相关信息；

(2)查询图中任意两个景点的最短路径。

(3)查询图中任意两个景点的所有路径。

--Free to the net means that the school campus attractions in your plans, the figure fixed-point of their main attractions, storage spots number, name, profile and other information. Requires the ability to answer questions about attractions introduction, tour passing by and so on. Requirements: (1) check the relevant information sites　(2) query graph the shortest path between any two spots. (3) The query graph for all paths of any two spots.