TreeNode数据结构思想的菜单实现,同过才代码会进一步的Tree思想的数据组织形式-TreeNode Data Structures thinking Menu realize, with the code they are thinking of further data Tree forms of organization
对于可拓学中统一集的描述。统一集是模式识别的另外一种思路,很值得学习。-For a unified set of extenics in the description. Uniform set is another idea of pattern recognition, it is worth learning.