本程序为dijkstra算法的最核心部分，也基本上是源码，并无很大改动，用意在于大家对dijkstra算法有个宏观的理解，基本上对代码行行注释很适合新手。也提出对dijkstra算法修改的一点思路-The dijkstra algorithm core part This program is basically the source code, there are no great changes, the intention is to have a macro understanding

简单的路径优化问题很实用的 程序代码，可以选择-For simple path optimization problem very useful program code, you can choose