初学数据结构 二叉树的问题
#include <stdio.h>
#include <stdlib.h>
#include <malloc.h>

#define OK 1

#define OVERFLOW -2
typedef int Status;
typedef char TElemType;

typedef struct BiTNode{
TElemType data;
struct BiTNode *lchild,*rchild;

}BiTNode, * BiTree;


Status CreateBiTree(BiTree &T){
TElemType ch;
scanf( "%c ",&ch);

if(ch== ' ') T=NULL;
else{
if(!(T=(BiTNode *)malloc(sizeof(BiTNode)))) exit(OVERFLOW);
T-> data=ch;
CreateBiTree(T-> lchild);
CreateBiTree(T-> rchild);
}
return OK;
}

void main()
{

CreateBiTree(BiTree &T);
}


报错如下：
--------------------Configuration: compress - Win32 Debug--------------------
Compiling...
compress.cpp
E:\数据结构\树\compress.cpp(35) : error C2065: 'T ' : undeclared identifier
E:\数据结构\树\compress.cpp(35) : error C2275: 'BiTree ' : illegal use of this type as an expression
E:\数据结构\树\compress.cpp(15) : see declaration of 'BiTree '
Error executing cl.exe.

compress.exe - 2 error(s), 0 warning(s)

二叉树学习中 请多执教！


[解决办法]
void main()
{

CreateBiTree(BiTree &T); //哪有这么调用的
}