#include<stdio.h>
#include<stdlib.h>
#include<string.h>
typedef char TElemType;


typedef struct BiTNode
{
    TElemType data;
    struct BiTNode *Lchild;
    struct BiTNode *Rchild;
}BiTNode,*BiTree;

void CreateBiTree(BiTree &root)
{
    char ch;
    ch=getchar();
    if(ch=='#') root=NULL;
    else
    {
        root=(BiTNode *)malloc(sizeof(BiTNode));
        root->data=ch;
        CreateBiTree(root->Lchild);
        CreateBiTree(root->Rchild);
    }
}



void main()
{
    BiTree T;
    CreateBiTree(T);
}


就像这样,我分别输入a(回车)#(回车)#(回车),但是怎么不停,还要继续输入?