实现了图的搜索算法，包括深度优先搜索，广度优先搜索，Dijstra算法，A*算法等较典型的搜索算法，同时可以进行图的输入和编辑等操作，仅供大家参考。-achieve the plan's search algorithm, including depth-first search, breadth- first search algorithm Dijstra, A* algorithm is more typical search algorithm, and can map the