A*算法最早在1968年论文《A Formal Basis for the Heuristic Determination of Minimum Cost Paths》[21]中被首次提出,A*算法是启发式搜索算法,A*算法将广度优先搜索(BFS)和Dijkstra算法相结合,引入启发式函数,以此来衡量实时搜索位置和目标位置的距离关系,使搜索方向优先朝向目标点所处方向,最终达到提高搜索效率的效果.
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