typedef struct bt{
 int data;
 struct bt *lchild;
 struct bt *rchild;}tree;
 
 tree *st[100];
 tree *creat()
 { int i,vale;
   tree *p;
   tree *t;
   t=st[1];
   printf("qing shu ru er cha shu de jie dian zhi ji xu hao\n");
   scanf("%d%d",&vale,&i);
   p=(tree *)malloc(sizeof(tree));
   p->data=vale;
   p->rchild=0;
   p->lchild=0;
   st[i]=p;
   scanf("%d%d",&vale,&i);
   while(vale!=10000)
   { p=(tree *)malloc(sizeof(tree));
     p->data=vale;
     p->rchild=0;
     p->lchild=0;
     if(i%2==0)
     st[i/2]->lchild=p;
     else st[i/2]->rchild=p;
     scanf("%d%d",&vale,&i);}
      return t;
      }

 vist(tree *k)
 { if (k!=0)
    {printf("%d",k->data);
     vist(k->lchild);
     vist(k->rchild);}
   else printf("gai shu shi yi ke kong shu\n");}
     




main()
{ tree *l;
  l=creat();   
  vist(l);}

我想也是creat函数的循环条件出了问题,那怎么改呀?