单选题：在循环双链表的p所指向结点之后插入s所指结点的操作。

在循环双链表的p所指向结点之后插入s所指结点的操作。 @[D](2)

A. p->next=s;s->prior=p;p->next->prior=s;s->next=p->prior;
B. p->next=s;p->prior->next=s;s->prior=p;s->next=p->next;
C. s->prior=p;s->next=p->next;p->next=s;p->next->prior=s;
D. s->prior=p;s->next=p->next;p->next->prior=s;p->next=s;




A.p->next=s;s->prior=p;p->next->prior=s;s->next=p->prior;
B.p->next=s;p->prior->next=s;s->prior=p;s->next=p->next;
C.s->prior=p;s->next=p->next;p->next=s;p->next->prior=s;
D.s->prior=p;s->next=p->next;p->next->prior=s;p->next=s;


答案：D