手贱-写链表玩玩

        public void RemoveNode(DoubleNode<TData> node)        {            if (node.Previous != null)                node.Previous.Next = node.Next;            else                this.Head = node.Next;            if (node.Next != null)                node.Next.Previous = node.Previous;            else                this.Tail = node.Previous;        }

在简化之前用了好几个if，else。这个版本是精简过的。还算满意吧～～呵呵～～