public Enumerator(DoubleLinkedList <T> dlnodes)
{
_dlnodes = dlnodes;
}
internal static void Max(this DoubleLinkedList <int> source)
{
Console.WriteLine("调用Max()方法");
}
public static void call()
{
#region 双向链表
////12，----双向链表
////----在后面添加节点
DoubleLinkedList <int> doubleLinkedList = new DoubleLinkedList <int>();
//DLinkNode<int> firstNode = new DLinkNode<int> { Content = 1 };
//doubleLinkedList.AddOnTail(firstNode);
////case-1 => 1
//Console.WriteLine(doubleLinkedList.Count == 1);
////case-1 => true
//Console.WriteLine(firstNode == doubleLinkedList.Head);
////case-1 => true
//Console.WriteLine(firstNode == doubleLinkedList.Tail);
//DLinkNode<int> secondNode = new DLinkNode<int> { Content = 2 };
//doubleLinkedList.AddOnTail(secondNode);
////case-2 =>node_2 的上一个节点是链表的头结点;
//Console.WriteLine(secondNode.Previous == doubleLinkedList.Head);
////case-2 =>node_1 的下一个节点是node_2;
//Console.WriteLine(firstNode.Next == secondNode);
////case-2 => 2
//Console.WriteLine(doubleLinkedList.Count == 2);
////case-2 => 第一个节点仍然是头节点
//Console.WriteLine(firstNode == doubleLinkedList.Head);
////case-2 => tail is node_2
//Console.WriteLine(secondNode == doubleLinkedList.Tail);
//DLinkNode<int> thirdNode = new DLinkNode<int> { Content = 3 };
//doubleLinkedList.AddOnTail(thirdNode);
////case-3 =>node_3 的上一个节点是node_2;
//Console.WriteLine(thirdNode.Previous == secondNode);
////case-3 =>node_2 的下一个节点是node_3;
//Console.WriteLine(secondNode.Next == thirdNode);
////case-3 => 3
//Console.WriteLine(doubleLinkedList.Count == 3);
////case-3 => true
//Console.WriteLine(firstNode == doubleLinkedList.Head);
////case-3 => tail is node_3
//Console.WriteLine(thirdNode == doubleLinkedList.Tail);
////case-3 => node_2 isn't tail
//Console.WriteLine(secondNode != doubleLinkedList.Head &&
// secondNode != doubleLinkedList.Tail);
////case-4 => 4
//DLinkNode<int> fourthNode = new DLinkNode<int> { Content = 4 };
//doubleLinkedList.AddOnTail(fourthNode);
//Console.WriteLine(doubleLinkedList.Count == 4);
//Console.WriteLine("----从头添加节点");
//DLinkNode<int> fifthNode = new DLinkNode<int> { Content = 5 };
//doubleLinkedList.AddOnHead(fifthNode);
////case-1 => 5
//Console.WriteLine(doubleLinkedList.Head == fifthNode);
//Console.WriteLine(doubleLinkedList.Count == 5);
//Console.WriteLine("-----删除firstNode之前");
//Console.WriteLine(firstNode.Previous == doubleLinkedList.Head);
//Console.WriteLine(doubleLinkedList.Head.Next == firstNode);
//Console.WriteLine(firstNode.Next == secondNode);
//Console.WriteLine(secondNode.Previous == firstNode);
//doubleLinkedList.Remove(firstNode);
//Console.WriteLine("-----删除firstNode之后");
//Console.WriteLine(doubleLinkedList.Count == 4);
//Console.WriteLine(firstNode.Previous == null);
//Console.WriteLine(firstNode.Next == null);
//Console.WriteLine(fifthNode.Next == secondNode);
//Console.WriteLine(secondNode.Previous == fifthNode);
//Console.WriteLine("--删除fifthNode（头结点）之前");
//Console.WriteLine(fifthNode.Previous == null);
//Console.WriteLine(fifthNode.Next == secondNode);
//Console.WriteLine(secondNode.Previous == fifthNode);
//doubleLinkedList.Remove(fifthNode);
//Console.WriteLine("-----删除fifthNode（头结点）之后");
//Console.WriteLine(doubleLinkedList.Count == 3);
//Console.WriteLine(fifthNode.Previous == null);
//Console.WriteLine(fifthNode.Next == null);
//Console.WriteLine(doubleLinkedList.Head == secondNode);
//Console.WriteLine(secondNode.Previous == null);
//Console.WriteLine("--删除fourthNode（尾节点）之前");
//Console.WriteLine(fourthNode.Previous == thirdNode);
//Console.WriteLine(fourthNode.Next == null);
//Console.WriteLine(thirdNode.Next == fourthNode);
//doubleLinkedList.Remove(fourthNode);
//Console.WriteLine("--删除fourthNode（尾节点）之后");
//Console.WriteLine(doubleLinkedList.Count == 2);
//Console.WriteLine(fourthNode.Previous == null);
//Console.WriteLine(fourthNode.Next == null);
//Console.WriteLine(thirdNode.Next = null);
//doubleLinkedList.Remove(thirdNode);
//doubleLinkedList.Remove(secondNode);
//Console.WriteLine("-- 删除所有节点");
//Console.WriteLine(doubleLinkedList.Count == 0);
//Console.WriteLine(doubleLinkedList.Head == null);
//Console.WriteLine(doubleLinkedList.Tail == null);
//Console.WriteLine("---------------");
////----节点数量
////Console.WriteLine($"节点数量=>{doubleLinkedList._count}");
//////----在后面插入
////DLinkNode<int> sixthNode = new DLinkNode<int> { Content = 6 };
////doubleLinkedList.Insert(firstNode,sixthNode);
//////case => 6
////Console.WriteLine($"Insert=>{doubleLinkedList.Head.Next.Next.Content}");
//////----交换
/////----5,1,6,2,3,4
/////----首个和中间第5个交换
////Console.WriteLine("首个和中间第5个交换");
//////case-1 => 5
////Console.WriteLine($"交换{doubleLinkedList.Head.Content}");
//////case-1 => 3
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Content);
////doubleLinkedList.Swap(thirdNode, fifthNode);
//////case-1 => 3
////Console.WriteLine(doubleLinkedList.Head.Content);
//////case-1 => 5
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Content);
//////----首尾交换
////Console.WriteLine("首尾交换");
//////case-2 => 5
////Console.WriteLine(doubleLinkedList.Head.Content);
//////case-2 => 4
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Next.Content);
////doubleLinkedList.Swap(fourthNode, fifthNode);
//////case-2 => 4
////Console.WriteLine(doubleLinkedList.Head.Content);
//////case-2 => 5
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Next.Content);
//////----末尾和中间第3个交换
////Console.WriteLine("末尾和中间第3个交换");
//////case-3 => 6
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Content);
//////case-3 => 4
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Next.Content);
////doubleLinkedList.Swap(fourthNode, sixthNode);
//////case-3 => 4
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Content);
//////case-3 => 6
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Next.Content);
//////----中间相隔交换
////Console.WriteLine("----中间相隔交换");
//////case-7 => 1
////Console.WriteLine(doubleLinkedList.Head.Next.Content);
//////case-7 => 3
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Content);
////doubleLinkedList.Swap(firstNode, thirdNode);
//////case-7 => 1
////Console.WriteLine(doubleLinkedList.Head.Next.Content);
//////case-7 => 3
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Content);
//////----中间相邻交换
////Console.WriteLine("----中间相邻交换");
//////case-4 => 2
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Content);
//////case-4 => 3
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Content);
////doubleLinkedList.Swap(secondNode, thirdNode);
//////case-4 => 3
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Content);
//////case-4 => 2
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Content);
//////----末尾相邻交换
////Console.WriteLine("----末尾相邻交换");
//////case-5 => 3
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Content);
//////case-5 => 4
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Next.Content);
////doubleLinkedList.Swap(fourthNode, thirdNode);
//////case-5 => 4
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Content);
//////case-5 => 3
////Console.WriteLine(doubleLinkedList.Head.Next.Next.Next.Next.Next.Content);
//////----头部相邻交换
////Console.WriteLine("----头部相邻交换");
//////case-6 => 5
////Console.WriteLine(doubleLinkedList.Head.Content);
//////case-6 => 1
////Console.WriteLine(doubleLinkedList.Head.Next.Content);
////doubleLinkedList.Swap(firstNode, fifthNode);
//////case-6 => 5
////Console.WriteLine(doubleLinkedList.Head.Content);
//////case-6' => 1
////Console.WriteLine(doubleLinkedList.Head.Next.Content);
//#endregion
#endregion
}