设指针变量p指向双向中结点A,指针变量s指向被插入的结点X,则在结点A的后面插入结点X的操作序列为( )。
A.
p->next=s; s->prior=p; p->next->prior=s; s->next=p->next;
B.
s->prior=p;s->next=p->next;p->next=s; p->next->prior=s;
C.
p->next=s; p->next->prior=s; s->prior=p; s->next=p->next;
D.
s->prior=p;s->next=p->next;p->next->prior=s; p->next=s;