摘要： // FindTree2.cpp : 定义控制台应用程序的入口点。//#include "stdafx.h"#include #include "stdafx.h"using namespace std;typedef struct _TreeNode{char data;_TreeNode* lChild;_TreeNode* rChild;}TreeNode,*PTreeNode;void PreWalk(TreeNode* p) { if(p == NULL) return; coutdata lChild != NULL) coutdatalCh 阅读全文