#include<stdio.h>
struct Qi
    {
        int num;
        struct Qi *next;
    };
main()
{
    struct Qi a,b,c,d,*L,*p,q,*j;
    a.num=1;
    b.num=2;
    c.num=3;
    d.num=4;
    L=&a;
    a.next=&b;
    b.next=&c;
    c.next=&d;
    d.next=NULL;
    p=L;
    int i=0;
    int n;
    printf("what do you want delete:");
    scanf("%d",&n);
    do
    {   printf("%d\n",p->num);
        p=p->next;
        if(i==n)
        {
               q=p->num;//这里好像有问题？
            p->next=p->next->next;
        };
        i++;
    }while(p!=NULL);
    i=0;
    while(P!=MULL)
    {
        p=p->next;
        i++;
    }
    printf("number is %d \n",i);
    printf("%d  \n",q);
    return 0;
}
这是静态单链表，我想删除其中的某一个节点，但是老出错！

删除结点p = p -> next