Introduction - If you have any usage issues, please Google them yourself
Keyboard input data, the establishment of a directed graph of the adjacency list. (2) the output of the adjacent table. (3) the establishment of an undirected graph of the cross list. (4) in the directed graph adjacency list based on the calculation of the vertex degrees, and outputs. (5) the use of adjacency list undirected graph storage to achieve the depth-first traversal. . (6) using adjacency list undirected graph storage to achieve the breadth-first traversal.