迪杰斯特拉算法是由荷兰计算机科学家狄克斯特拉于1959 年提出的，因此又叫狄克斯特拉算法。是从一个顶点到其余各顶点的最短路径算法，解决的是有向图中最短路径问题。迪杰斯特拉算法主要特点是以起始点为中心向外层层扩展，直到扩展到终点为止。-Dijkstra algorithm was proposed by the Holland computer scientist Dijkstra in 1959, and therefore also called Dijkstra algorithm. Is the shortest path algorithm　a vertex to the rest of the vertices of the shortest path algorithm to solve the shortest path problem in the graph.