用弗洛伊德算法实现最短路径的求解，用到的抽象数据类型为邻接矩阵类型和有向图类型类型-Floyd algorithm to achieve the shortest path to solve abstract data types used in the adjacency matrix type and have the type of diagram types

输入一个邻接矩阵，求一个图的最短路径，2种方法：迪杰斯特拉发和弗洛伊德法-Enter an adjacency matrix, the shortest path of a graph, two kinds of methods: Dijkstra hair and Freud Act