图的连通性判断。本次实验要求用计算机语言编写图的连通性判断算法，可输入图的邻接矩阵，判断图是否连通以及确定连通分支的个数，使学生掌握Warshell算法或矩阵幂算法的实现方法，培养算法设计与优化能力。-The experiment requires written in a computer language to determine the connectivity graph algorithms, you can enter the adjacency matrix to determin