求解最短路径的各种算法，包括dijstra、floyd等，用dilphi编写，稍有不成熟之处，还望批评指正-solving the shortest path algorithm, including dijstra, floyd. dilphi prepared with a little premature's Office, also criticized the correct look

适用于APSP(All Pairs Shortest Paths，多源最短路径)，是一种动态规划算法，稠密图效果最佳，边权可正可负。此算法简单有效-floyd All Pairs Shortest Paths