摘要： #include<iostream>using namespace std;struct BTreeNode{ int data; struct BTreeNode *lchild,*rchild;};void PostOrder(BTreeNode *bt) { if(bt!=NULL) { PostOrder(bt->lchild); PostOrder(bt->rchild); printf("%d\n",bt->data); } } void PreInCreate(BTreeNode *&root,int pre... 阅读全文