从键盘输入无向图G的顶点个数v及边的个数e。建立有v个顶点、e条边构成的无向图G，采用邻接矩阵表示。V个顶点的值由键盘输入，元素类型为字符型。e条边的信息也由键盘输入。分别调用图的深度优先搜索、广度优先搜索图并输出相应的遍历序列。-Input from the keyboard without the number of vertices to the graph G v and the number of edges e. Establishment of a v vertices, e ed