图的操作 1.邻接法创建图 2.输出建立的图 3.求各顶点的度 4.深度遍历图 5.广度遍历图 6.退出程序-Figure 1 operation. Neighbor joining to create Figure 2. Output created Figure 3. Seek the vertices of degree 4. Deep traversal Figure 5. Breadth traversal Figure 6. Exit