线索二叉树，能帮助我们快速的建立二叉树，不需要重复代码，这样会使得设计者更加的轻松-ThreadTree is a BinaryTree which is converinint to built a BinaryTree , everyone wants to learn it , it really can help us ，we also learn how to build a BinaryTree.lt was a cool fall afternoon in Manhattan. The woman turned off the faucet and looked at her face in the bathroom mirror.　I m going to go to the movies this evening　she thought, and smiled. Ten minutes later she took the elevator to the first floor and left the building. She was wearing a long, black coat, a hat and pair of shades.



Outside the building she stopped for a moment and looked at all the noisy automobiles and trucks in the street. Next she looked at the people on the sidewalk. There were so many of them.　Is this a good idea?　she asked herself. Then she put her pocketbook under one arm and called a cab.　Of course it is.’



The journey to the movie theater took five minutes. In those five minutes the woman realized that she still loved New York. OK — her apartment was cold in the winter. Yes, there were a l