VC实现的用于查看本目录文本文件的小工具 当需要查看大量文本文件时很有用 -VC catalog achieved a text file for viewing small tools when the need to see a large number of useful text files

建立一个图，实现连通图的，输出一个最大连通图的连通分量-A graph, connectivity graph, the output of one of the largest connected component of graph connectivity