哪位大神怎么知道输入数据成功运行？？？ 在线急等！！！

#include

#include

//poly数据类型

typedef struct poly {
int coef;
int expn;
struct poly *pNext;
}POLY;

//初始化表达式

POLY *InitPoly(void)
{
POLY *pHead;
if ((pHead = (POLY *)malloc(sizeof(POLY))) == NULL)
exit(-1);
pHead->pNext = NULL;

return pHead;

}

//释放链表

void FreeList(POLY *pHead)
{
POLY *pTemp1, *pTemp2;
pTemp1 = pHead->pNext;
while (pTemp1 != NULL) {
pTemp2 = pTemp1->pNext;
free(pTemp1);
pTemp1 = pTemp2;
}

pHead->pNext = NULL;

}

//销毁链表

void DesList(POLY *pHead)
{
FreeList(pHead);
free(pHead);
}

//输入表达式

void InputPoly(POLY *pHead)
{
int coef, expn;
POLY *pTail, *pNew;
pTail = pHead;

while (1) {
    printf("请输入(系数,指数),需指数递增输入,系数为0时结束输入:");
    scanf_s("%d,%d", &coef, &expn);
    if (coef != 0)
    {
        if ((pNew = (POLY *)malloc(sizeof(POLY))) == NULL)
            exit(-1);
        pNew->coef = coef;
        pNew->expn = expn;
        pTail->pNext = pNew;
        pTail = pNew;
    }
    else {
        break;
    }
}

pTail->pNext = NULL;

}

//输出表达式

void OutputPoly(POLY *pHead)
{
POLY *pTemp;
pTemp = pHead->pNext;

if (pTemp == NULL) {
    printf("\n");
    return;
}
printf("%dx^%d", pTemp->coef, pTemp->expn);
pTemp = pTemp->pNext;

while (pTemp != NULL) {
    printf("%+dx^%d", pTemp->coef, pTemp->expn);
    pTemp = pTemp->pNext;
}

printf("\n");

}

//表达式相加

POLY *AddPoly(POLY *pHead1, POLY *pHead2)
{
int temp;
POLY *pHead3, *pNew, *pTail; //结果链表相关变量

POLY *pTemp1, *pTemp2; //运算链表相关变量

pTemp1 = pHead1->pNext;
pTemp2 = pHead2->pNext;
pHead3 = InitPoly();
pTail = pHead3;

//将两个多项式扫描运算后放入结果链表中  
while (pTemp1 != NULL && pTemp2 != NULL) {
    //如果指数相等  
    if (pTemp1->expn == pTemp2->expn) {

        if ((temp = pTemp1->coef + pTemp2->coef) == 0) {
            pTemp1 = pTemp1->pNext;
            pTemp2 = pTemp2->pNext;
            continue;
        }
        if ((pNew = (POLY *)malloc(sizeof(POLY))) == NULL)
            exit(-1);
        pNew->coef = temp;
        pNew->expn = pTemp1->expn;
        pTail->pNext = pNew;
        pNew->pNext = NULL;
        pTail = pNew;
        pTemp1 = pTemp1->pNext;
        pTemp2 = pTemp2->pNext;

    }//如果表达式1指数小于2  
    else if (pTemp1->expn < pTemp2->expn) {
        if ((pNew = (POLY *)malloc(sizeof(POLY))) == NULL)
            exit(-1);
        *pNew = *pTemp1;
        pNew->pNext = NULL;
        pTail->pNext = pNew;
        pTail = pNew;
        pTemp1 = pTemp1->pNext;
    }//如果表达式1指数大于2  
    else {
        if ((pNew = (POLY *)malloc(sizeof(POLY))) == NULL)
            exit(-1);
        *pNew = *pTemp2;
        pNew->pNext = NULL;
        pTail->pNext = pNew;
        pTail = pNew;
        pTemp2 = pTemp2->pNext;
    }
}
//将剩余的未扫描项放入结果链表中  
while (pTemp1 != NULL) {
    if ((pNew = (POLY *)malloc(sizeof(POLY))) == NULL)
        exit(-1);
    *pNew = *pTemp1;
    pNew->pNext = NULL;
    pTail->pNext = pNew;
    pTail = pNew;
    pTemp1 = pTemp1->pNext;
}
while (pTemp2 != NULL) {
    if ((pNew = (POLY *)malloc(sizeof(POLY))) == NULL)
        exit(-1);
    *pNew = *pTemp2;
    pNew->pNext = NULL;
    pTail->pNext = pNew;
    pTail = pNew;
    pTemp2 = pTemp2->pNext;
}

return pHead3;

}

//两个多项式减法

POLY *SubPoly(POLY *pHead1, POLY *pHead2)
{
POLY *pHead3, *pTemp;
pTemp = pHead2->pNext;

//被减表达式每一项系数乘以-1  
while (pTemp != NULL) {
    pTemp->coef = -1 * pTemp->coef;
    pTemp = pTemp->pNext;
}

pHead3 = AddPoly(pHead1, pHead2);

//将被减表达式值复原  
pTemp = pHead2->pNext;
while (pTemp != NULL) {
    pTemp->coef = -1 * pTemp->coef;
    pTemp = pTemp->pNext;
}
return pHead3;

}

//两个多项式相乘

POLY *MultPoly(POLY *pHead1, POLY *pHead2)
{
POLY *pResult = NULL, *pTemp1, *pTemp2, *pMult1, *pMult2, *pNew, *pTail;

pMult1 = InitPoly();
pMult2 = InitPoly();
pTemp1 = pHead1->pNext;

while (pTemp1 != NULL) {
    FreeList(pMult1);
    pTail = pMult1;
    pTemp2 = pHead2->pNext;
    while (pTemp2 != NULL) {

        if ((pNew = (POLY *)malloc(sizeof(POLY))) == NULL)
            exit(-1);
        pNew->coef = pTemp1->coef * pTemp2->coef;
        pNew->expn = pTemp1->expn + pTemp2->expn;
        pNew->pNext = NULL;
        pTail->pNext = pNew;
        pTail = pNew;
        pTemp2 = pTemp2->pNext;
    }
    pResult = AddPoly(pMult1, pMult2);
    FreeList(pMult2);
    pMult2->pNext = pResult->pNext;
    pTemp1 = pTemp1->pNext;
}

DesList(pMult1);
free(pMult2);

return pResult;

}

//多项式求导

POLY *DerPoly(POLY *pHead)
{
POLY *pTemp = pHead->pNext;
POLY *pNew, *pHead1, *pTail;
pHead1 = InitPoly();
pTail = pHead1;
while (pTemp != NULL) {
if (pTemp->expn == 0) {
pTemp = pTemp->pNext;
continue;
}
if ((pNew = (POLY *)malloc(sizeof(POLY))) == NULL)
exit(-1);
pNew->coef = pTemp->coef * pTemp->expn;
pNew->expn = pTemp->expn - 1;
pTail->pNext = pNew;
pNew->pNext = NULL;
pTail = pNew;
pTemp = pTemp->pNext;
}

return pHead1;

}

int main(void)
{
POLY *pHead1, *pHead2, *result;
pHead1 = InitPoly();
InputPoly(pHead1);
pHead2 = InitPoly();
InputPoly(pHead2);
printf("表达式1：");
OutputPoly(pHead1);
printf("表达式2：");
OutputPoly(pHead2);
result = AddPoly(pHead1, pHead2);
printf("表达式1 + 表达式2 = ");
OutputPoly(result);
DesList(result);
result = SubPoly(pHead1, pHead2);
printf("表达式1 - 表达式2 = ");
OutputPoly(result);
DesList(result);
result = SubPoly(pHead2, pHead1);
printf("表达式2 - 表达式1 = ");
OutputPoly(result);
DesList(result);
result = DerPoly(pHead1);
printf("表达式1求导 = ");
OutputPoly(result);
DesList(result);
result = MultPoly(pHead1, pHead2);
printf("表达式1 * 表达式2 = ");
OutputPoly(result);
DesList(result);
DesList(pHead1);
DesList(pHead2);

return 0;

}

1,2 3,4 3,5 2,6回车
5,1 回车
0回车

没用，陷入了一个死循环。怎么办？

可以打印scanf的返回值