程序的主要功能是实现有向图最短路径的搜索，采用的数据是txt格式的邻接矩阵，采用的算法为改进的狄氏算法。内附调试和文件说明。-procedures main function is to achieve the shortest path to the map search, The data format is txt adjacent matrix, the algorithm to improve the dieldrin algorithm. Debugging and document