宽度优先搜索算法（又称广度优先搜索）是最简便的图的搜索算法之一，这一算法也是很多重要的图的算法的原型。Dijkstra单源最短路径算法和Prim最小生成树算法都采用了和宽度优先搜索类似的思想-Breadth-first search algorithm (also known as breadth-first search) is the most simple plan, one of the search algorithm, this algorithm is also a lot of important plans of the prototype algorithm. Single-source Dijkstra shortest path algorithm and Prim minimum spanning tree algorithm has been adopted and breadth-first search for a similar idea