说明：  利用MATLAB实现Floyd算法，可对输入的邻接距离矩阵计算图中任意两点间的最短距离矩阵和路由矩阵，且能查询任意两点间的最短距离和路由。
(Floyd algorithm using MATLAB realize, can be routed to the shortest distance adjacency matrix and the distance matrix calculation map between any two points in the input matrix, and can query the shortest distance and route between any two points.)