数据结构与算法(C#实现)系列---AVLTree（二）[3]

         {

              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();