tp3 自带翻页，赋值到前端

tp3 分页
$page = new \Think\Page($count,20);
$show = $page->show();
$data = M($db)->where($map)->limit($page->firstRow.','.$page->listRows)->order("id Desc")->select();
$this->assign('show',$show);

前端

<p>
{$show}
</p>