单项选择题
↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑ ↑双链表的每个节点包括两个指针域。其中rlink指向节……
双链表的每个节点包括两个指针域。其中rlink指向节点的后继,llink指向节点的前驱。如果要在p所指节点后插入q所指的新节点,下面哪一个操作序列是正确的
A.p↑.rlink↑.llink:=q;p↑.rlink:=q;q↑.llink:=p;q↑.rlink:=p↑,rlink;
B.p↑.llink↑.rlink:=q;p↑.llink:=q;q↑.rlink:=p;q↑.llink:=p↑.llink;
C.q↑.llink:=p;q↑.rlink:=p↑.rlink;p↑.rlink↑.llink:=q;p↑.rlink:=q↑;
D.q↑.rlink:=p;q↑.llink:=p↑.llink;p↑.1link↑.rlink:=q;p↑.llink:=q;