C语言初学者的一个问题

C/C++ code

#include "stdafx.h"#include "stdio.h"#define NODE struct StuInfovoid main(){    }struct StuInfo{    int score;    struct StuInfo *next;}/*typedef struct StuInfo NODE;  */NODE *create()  //创建链表{  NODE *head, *tail, *pnew;  int score;  head = (NODE *)malloc (sizeof(NODE));  //创建头节点  head->next = NULL;    //头节点的指针域置NULL  tail = head;                    //开始时尾指针指向头节点  while (1)  //创建学生成绩线性链表  {    scanf ("%d", &score);  //输入成绩    if (score < 0)         //成绩为负,循环退出        break;    pnew = (NODE *)malloc (sizeof(NODE)); //创建一新节点    pnew->score = score;       pnew->next = NULL;      tail->next = pnew;         tail = pnew;  } return (head);}

在vc++6.0中执行之后显示以下错误：哪位大侠能告诉我为什么呢
--------------------Configuration: BB - Win32 Debug--------------------
Compiling...
BB.cpp
D:\Program Files\Microsoft Visual Studio\MyProjects\BB\BB.cpp(19) : error C2236: unexpected 'struct' 'StuInfo'
D:\Program Files\Microsoft Visual Studio\MyProjects\BB\BB.cpp(23) : error C2065: 'malloc' : undeclared identifier
执行 cl.exe 时出错.

BB.exe - 1 error(s), 0 warning(s)

[解决办法]
#include <stdlib.h>
[解决办法]
没有包含malloc函数的原型声明～