TP分頁製做

$count      = $product_model->where($where)->count();

     $Page       = new Page($count,20);

     $show       = $Page->show();

     $list = $product_model->where($where)->order('id desc')->limit($Page->firstRow.','.$Page->listRows)->select();

        

     $this->assign('page',$show);

     $this->assign('list',$list);