理解二叉树特别是完全二叉树的性质，掌握二叉树的存储结构（二叉链表）；熟练掌握二叉树的常用操作算法（初始化、插入结点、删除结点、遍历等）；初步掌握二叉树的应用。-Binary tree in particular, to understand fully the nature of binary tree, binary tree master storage structure (List Binary)　proficiency in commonly used binary tree algorithm operation (initialize, insert node, delete node, times calendar, etc.)　initial grasp of the application of binary tree.