具有图形化界面的一个路由模拟程序。路由算法为Dijkstra算法。具有求出图中任意节点间所有最短路径以及最短路径子图的功能。-Graphical interface with a routing simulation program. Routing algorithm is Dijkstra algorithm. Find the figure with all the shortest path between any node and the shortest path subgraph function