数据结构之任意多叉树的建立和操作，包括先序，中序，层序，和插入节点，统计树信息。 融入了树，双向队列等经典数据结构的使用模式。-Data structure of any multi-branch tree establishment and operation, including the first order, in sequence, sequence, and insert the node, the tree statistics information. Into the tr