“渔人过河”是数据结构里面很常见的一个课题。要求是找出最好路径，并将路径保存输出，这里面涉及到链表二叉树的知识。技巧性还是有一些的。-" Fisherman' s across the river" is a very common data structure inside of an issue. Requirement is to find the best path, the path and save the output, there is related t