$count = count($list);
$Page = new \Think\Page($count,20);// 实例化分页类 传入总记录数和每页显示的记录数(25)
$Page->setConfig('header','条记录');
$Page->setConfig("prev","上一页");
$Page->setConfig("next","下一页");
$show = $Page->show();// 分页显示输出
$pagedata=array_slice($list,$Page->firstRow,$Page->listRows);