【人工智能导论：模型与算法】盲目搜索（BFS，DFS） 启发式搜索（贪婪最佳优先，A*）

https://cs.stanford.edu/people/abisee/tutorial/customize.html

https://www.redblobgames.com/pathfinding/a-star/introduction.html

https://www.redblobgames.com/pathfinding/a-star/implementation.html