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//---------------override--------------------
public override void AttachKey(object _obj)
{
if(!IsEmpty())
throw new Exception("My:this node must be a empty tree node!");
this.key=_obj;
//产生一个degree长的数组,并将其初始化为空树
this.treeList=new ArrayList();
this.treeList.Capacity=(int)this.degree;
for(int i=0;i<this.degree;i++)
{
treeList.Add(new AVLTree());
}
//
this.height=0;
} //在改动树的结构后平衡树
public override void Balance()
{
this.AdjustHeight();
//大于1则说明不平衡
if( Math.Abs(this.BalanceFactor())>1)
{
if(this.BalanceFactor()>0)
{
if (((AVLTree)this.Left).BalanceFactor()>0)
this.LLRotation();
else
this.LRRotation();
}
else
{
if (((AVLTree)this.Right).BalanceFactor()<0)
this.RRRotation();
else
this.RLRotation();
}
}
} public int Height
{
get{return this.height;}
}
