#include <stdio.h>
#include <stdlib.h>
typedef struct polynode
{
    int coef;//系数域
    int exp;//指数域
    struct polynode *next;
}PNode;
PNode *Creat_Linkst (int n);
void Print_Linkst (PNode *H);
main()
{
    PNode *pa;//多项式单链表的头指针
    int num;//多项式项数
    printf("enter num");
    scanf("%d",&num);//建立多项式
    pa=Creat_Linkst(num);
    printf("A(x)=");
    Printf_Linkst(pa);
    getch();
}
void Printf_Linkst(PNode *H)
{
    PNode *p;
    p=H->next;
    while(p->next)
    {
        printf("%dx^%d+",p->coef,p->exp);
                p=p->next;   
         }
         if(p->exp)
         printf("%dx^%d\n",p->next,p->exp);
       else
        printf("%d\n",p->coef);
}
PNode *Creat_Linkst(int n)
{
    PNode *head,*p,*s;
    int i;
    head=(PNode *)malloc(sizeof(PNode));
    head->next=0;
    p=head;
    printf("enter coef,exp:\n");
    for(i=1;i<=n;++i)
        s=(PNode *)malloc(sizeof(PNode));
    scanf("%d,%d",&s->coef,&s->exp);
    s->next=0;
    p->next=s;
    p=s;
}
return (head);
}

不好意思，刚刚我又找到了，我不是懒啊，我昨天就打好了，已经找了半天就是找不到，刚才实在不好意思，真抱歉