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 documents containing the note.