public void Swap(DoubleLinked another)
{
//只有两个值的时候 old 1 交换为 1 old
//this.Next = null;
//this.Previous = another;
//another.Previous = null;
//another.Next = this;
//三个值的时候 2 3 4头部交换为3 2 4
//doublelinked temp ;
//temp = another.next;
//another.next = this;
//this.next = temp;
//this.next.previous=this ;
//this.previous = another;
//another.previous = null;
////5 6 7 尾部交换为 5 7 6
//DoubleLinked temp;
//temp = this.Previous;
//this.Previous = another;
//another.Previous = temp;
//temp.Next = another;
//another.Next = this;
//this.Next = null;
//8 9 10 11 中间交换为 8 10 9 11
//DoubleLinked before;
//DoubleLinked after;
//before = this.Previous;
//after = another.Next;
//another.Next = this;
//this.Next = after;
//before.Next = another;
////after.Next = null;
//this.Next.Previous=this;
//another = this.Previous;
//before = another.Previous;
////before.Previous = null;
DoubleLinked temp;
temp = another.Previous;
this.Delete();
another.Delete();
another.InserBefore(temp);
this.InserAfter(temp);
temp.Delete();
}
/// <summary>
/// 插入当前节点前面
/// </summary>
/// <param name="node"></param>
public void InserBefore(DoubleLinked node)
{
if (node.Previous == null)
{
node.Previous = this;
this.Next = node;
}
else
{
this.Previous = node.Previous;
node.Previous = this;
this.Next = node;
this.Previous.Next = this;
}
}
/// <summary>
/// 插入当前节点后面
/// </summary>
/// <param name="node"></param>
public void InserAfter(DoubleLinked node)
{
if (node.Next == null)
{
//current1.InserAfter(old);
node.Next = this; //this指代current1
this.Previous = node;
}
else
{
//current2.InserAfter(old);
this.Next = node.Next;
node.Next = this;
this.Next.Previous = this;
this.Previous = node;
//还可以重构代码，使用单元测试检测功能是否损坏
}
}