公车最短路径算法具体的算法：

实际上乘客不一定要找最短，里面还涉及到换乘次数最少，费用最少等问题

因此，边向量的权值要分多种情况考虑，所以如果真的要开发实用的系统

应该给出多种最佳选择。

-Bus shortest path algorithm specific algorithm: in fact they do not necessarily find the shortest, which also involves the least number of transfer cost and other issues at least, therefore, the right edge vector values have to consider a number of situations, so if we really wish to the development of practical systems should be given a variety of best choice.