这是我参加某公司面试时做的一个二叉树问题题目，题目是求任意给出一组数看是否在树上，并求节点和数的裕度。这是我的答案，给大家分析参考。-This is a binary tree question when I participate a company s interview. The question is judging if a random series number is in binary tree and get the node and tree s amplitude.It s