// treeapp.cpp
#include<iostream.h>
#include"tree.h"
 int main(void)
{
  tree t;
  t.build_t(10);
  t.build_t(18);
  t.build_t(32);	
  t.build_t(16);
  t.build_t(3);
  t.build_t(77);	
  t.build_t(200);
  cout<<"前序遍歷："<<endl;
  t.preorder(t.get_r());
  cout<<endl;
  cout<<"中序遍歷："<<endl;
  t.inorder(t.get_r());
  cout<<endl;
  cout<<"后序遍歷："<<endl;
  t.postorder(t.get_r());
  cout<<endl;
  return(0);
 }