将一段以“*”结束的文本中的单词按照字典序打印出来，并且打印出该单词在正文中出现的次数；

将单词按字典次序存入一棵二叉排序树，第一个存入的单词为二叉树的根，读完文件中的单词后按中序遍历打印单词-Print out the words in the period of the end of the text " *"　in accordance with the lexicographical, and print out the number of occurrences of the word in the text　the word according to the dictionary order deposited in a binary sort tree first deposit word the root of the binary tree in preorder traversal printed word, after reading the words in the file