Introduction - If you have any usage issues, please Google them yourself
Information given city intersection, road, Dijkstra algorithm and Floyd algorithm to calculate the shortest distance and path between every two, the resulting output to a file, each line of a shortest path, its format is a comma-separatedas a starting point, the end of the shortest distance, the middle turn through the intersection number, each line in accordance with the starting point number, end number from small to large sorting and output only part of the starting point number is less than the end number.