兰州道路交通网络信息查询。设计一个简单的能够实现兰州道路交通网络信息查询功能的系统。兰州道路交通网采用邻接矩阵（或邻接表）表示，包括道路交通网邻接矩阵（或邻接表）的建立、路径（或时间）的查询、最短路径（或最短时间）的查找、显示输出等功能；兰州道路交通网中顶点表示地名、图上的弧表示两地之间有路径存在、弧上的权值表示两地之间的距离（或时间）(Information query of road traffic network in Lanzhou. Design a simple system that can realize the information query function of Lanzhou road traffic network. Lanzhou road traffic network using the adjacency matrix (or adjacency list) said that the road transport network including the adjacency matrix (or adjacency list) the establishment of the path (or time) of the query, the shortest path (or shortest time) search, display and output function; Lanzhou road traffic network vertices in the map, place names the said arc path exists, the arc weights that the distance between the two between the two (or time))