二叉树测试，二叉树的建立，测试等等。可以进行二叉树的学习，参考。-Binary test, binary tree, build, test and so on. Binary tree can be learning, reference.

这是一个数据结构的二叉树排序```不小于5个汉字或10个字母，详细的标题容易被下载。-This is a data structure of the binary tree sorting `` `not less than five characters, or 10 letters, detailed title easily be downloaded.

根据中后续遍历建立二叉树，并且输出其前序遍历-According to the subsequent establishment of a binary tree traversal, and the output of its preorder traversal