熟悉二叉树的各种存储结构的特点及适用范围；掌握建立二叉树的存储结构的方法；熟练掌握二叉树的前序、中序、后序遍历的递归及非递归算法；灵活运用递归的遍历算法实现二叉树的其它各种运算-Familiar with the binary tree structure of a variety of storage features and the scope of application　acquire storage to establish the structure of binary tree method　proficiency in the first order binary tree, in order, after the traversal of recursive and non-recursive algorithm　 flexibility in the use of recursive binary tree traversal algorithm to achieve a variety of other computing