public function index($page=1,$rows=20)
{
$syscode = M('SystemCode'); // 实例化User对象
$count = $syscode->where('code_state=0')->count();// 查询满足要求的总记录数
$list = $syscode->where('code_state=0')->order('create_time desc')->page($page.','.$rows)->select();
//生成翻页HTML代码
C('VAR_PAGE', 'page');
$pager = new \Think\PageBack($count, $rows, $_REQUEST);
$pager->setConfig('theme', '%FIRST% %UP_PAGE% %LINK_PAGE% %DOWN_PAGE% %END% %HEADER%');
$paginationHtml = $pager->show();
$this->assign('list',$list);// 赋值数据集
$this->assign('page',$paginationHtml);// 赋值分页输出
$this->display();
}