#include<stdio.h>
#include <stdlib.h>
typedef struct BitNode
{
char data;
struct BitNode* lchild;
struct BitNode* rchild;
}BitNode,*Bintree;
Bintree creatbitree(char *a,char *b,int m); //创建二叉树
void preordertraverse(BitNode* t); //前序遍历二叉树
void inorder(BitNode *t);
v...