程序代码：

Polynomil *Remove(Polynomil *head)
{
    int expon;
    Polynomil *pointer=head->next,*pt;
    printf("请输入你所要删除的项的指数：\n");
    scanf("%d",&expon);
    if(expon==pointer->expon)//删除第一个结点
    {
        head->next=pointer->next;
        free(pointer);
        printf("删除成功！\n");
    }
    else
    {
        while(pointer)
        {
            pt=pointer;
            pointer=pointer->next;
            if(pointer->expon==expon)
            {
                pt->next=pointer->next;
                free(pointer);
                pointer=pt;//这里是想把前驱结点赋给pointer,然后下一次循环从这个结点开始,直到表尾！但好像行不通
            }
        }
    }
    return head;
}

程序代码：

#include"stdio.h"
#include"stdlib.h"
int main()
{
    char *p=(char *)malloc(sizeof(char)),*q=(char *)malloc(sizeof(char));
    *p='P';
    *q='Q';
    printf("p指向的值：%c   p的地址：%p\n\n",*p,p);
    free(p);
    printf("p被释放后：\n\n");
    printf("p指向的值：%c    p的地址：%p\n\n",*p,p);
    p=q;
    printf("p被赋值后:\n\n");
    printf("p指向的值：%c    p的地址：%p  q的地址：%p\n\n",*p,p,q);
    *p=*q;
    printf("p所指向的值改变后：\n\n");
    printf("p指向的值：%c   p的地址：%p\n",*p,p);
    return 0;
}

程序代码：

Polynomil *Remove(Polynomil *head)
{
    int expon;
    Polynomil *pointer=head->next,*pt;
    printf("请输入你所要删除的项的指数：\n");
    scanf("%d",&expon);
    if(expon==pointer->expon)//删除第一个结点
    {
        head->next=pointer->next;
        free(pointer);
        printf("删除成功！\n");
    }
    else
    {
        while(pointer)
        {
            pt=pointer;
            if(pointer->next->expon==expon)
            {
                pointer->next=pointer->next->next;
                free(pt);
                pointer=pointer->next;//这里是想把前驱结点赋给pointer,然后下一次循环从这个结点开始,直到表尾！但好像行不通
            }
        }
    }
    return head;
}