摘要：#include<iostream>using namespace std;//首先进行二叉树的一些操作的代码，补上之前欠下的东西class bintree;class treenode{public: int key; treenode *p; treenode *left; treenode *right; class treenode() { key=0; p=NULL; left=NULL; right=NULL; } class treenode(int element,treenode* lchild,treenode *rchild,treenode *parent) 阅读全文