人工智能中的宽度优先搜索程序，以九宫格为例子，从初始节点开始搜索，找到目标节点，反之，显示出“未成功找到节点”-Artificial intelligence breadth-first search program to squares as an example, the initial node to start the search, to find the target node, and vice versa, showing that " not succeeded in