设计一个校园导游程序，为来访的客人提供各种信息查询服务。

要求：

设计学校的校园平面图（参考江苏大学校园网上校园平面图），所含景点不少于10个，以图中顶点表示校内各景点，存放景点名称、代号、简介等信息；以边表示路径，存放路径长度等相关信息。

为来访客人提供图中任意景点相关信息的查询。

为来访客人提供景点的问路查询，即已知一个景点，查询到某景点之间的一条最短路径及长度。

-A campus tour guide program design, for visiting guests a variety of information inquiries. Requirements: design school campus plan (refer to the campus network, Jiangsu University campus plan), contains not less than 10 spots, to map the vertices represent various school sites, storage sites name, code, profile and other information　to side, said path, storage path length and other related information. The figure for visiting any sites offering information about the query. Attractions for the visiting guests ask queries that are known to an attraction, a query to a shortest path between sites and length.