1. 建立二叉树

2. 计算结点所在的层次

3.统计结点数量和叶结点数量

4.计算二叉树的高度

5.计算结点的度

6.找结点的双亲和子女

7.二叉树的遍历

8.二叉树的输出-1. Establish binary 2. Calculate the junction point where the level 3 number of nodes and the number of statistics leaf node 4. Calculate the height of a binary tree 5. Calculation node 6. Looking for parents and children of the node traversal 7. Binary Tree 8 binary outputs