从校园地图中选取有代表性景点，抽象成一个无向带权图。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。可查询景点信息和两景点的最短路径。-Choose a representative the campus map attractions, abstracted into an undirected weighted graph. Vertex to map the school attractions representation, storage attractions names