遍历输出问题，请大神帮帮忙。谢谢！
# include <stdio.h># include <malloc.h>
# include <stdlib.h>
typedef struct Node
{
int data;
struct Node * pNext;
}NODE, * PNODE;
typedef struct Stack
{
PNODE pTop;
PNODE pBottom;
}STACK, * PSTACK;
void init(PSTACK);
void push(PSTACK, int );
void traverse(PSTACK);
int main()
{
STACK S;
int Val;
init (&S);
push(&S, 1);
push(&S, 2);
push(&S, 3);
push(&S, 4);
push(&S, 5);
push(&S, 6);
traverse(&S);
return 0;
}
void init(PSTACK pS)
{
pS->pTop = (PNODE)malloc(sizeof(NODE));
if(NULL == pS->pTop)
{
printf("动态内存分配失败");
exit(-1);
}
else
{
pS->pBottom = pS->pTop;
pS->pTop->pNext = NULL;
}
}
void push(PSTACK pS, int val)
{
PNODE pNew = (PNODE)(sizeof(NODE));
pNew->data = val;
pNew->pNext = pS->pTop;
pS->pTop = pNew;
return;
}
void traverse(PSTACK pS)
{
PNODE p = pS->pTop;
while (p != pS->pBottom)
{
printf("%d ", p->data);
p = p->pNext;
}
printf("\n");
return;
}
没有报错，但是却不能输出，是什么问题呢？
