双链表的打印

typedef struct dnode
{
        int data;
        struct dnode *prior;
        struct dnode *next;
}DNode;

void printDNode(DNode *head)
{
        DNode *p = NULL;
        for(p=head->next; p!=NULL; p=p->next)
                printf("%4d",p->data);
        printf("\n");

}