本演示程序中，设校园的平面图是一个无向网，顶点和边均含有相关信息，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的相关信息查询，任意景点的问路查询，即查询任意两个景点之间的一条最短的简单路径。 -This demo program, set up campus plan is an undirected network, vertices and edges contain relevant information, in order to map the vertex campus sites, storage of interest, code, profiles and other information　Edge said path storage path length and other related information, provide visitors an arbitrary graph query information on attractions, attractions ask any query, that query between any two points a shortest simple path.