说明：  实现无向图(或有向图)的存储表示,并输出对该图的广度优先（或深度优先）遍历。 系统具备如下的功能： 1．初始化。从键盘输入图的顶点数与边数。 2．输出图的相应的存储表示。 3．输出图的广度优先遍历序列。 4．输出图的深度优先遍历序列。
(Realize undirected graph (or digraph) express storage and output of the graph breadth-first (or depth-first) traversal. The system has the following features: 1. Initialization. From the keyboard input graph Vertices and edges. 2. The corresponding output map of the store said. 3. Output graph breadth-first traversal sequence. 4. Output graph depth-first traversal sequence.)