public static function create($totalPage, $pageSize = 10, $page = 1, $gets = [])
    {
        $p = new PageUtil();
        if ($pageSize < 1) {
            $pageSize = 1;
        }

        $total = ceil($totalPage / $pageSize);

        if ($page < 1) {
            $page = 1;
        } else if ($page > $total) {
            $page = $total;
        }

        $p->page = $page;
        $p->gets = $gets;
        $p->total = $total;
        $p->pageSize = $pageSize;
        return $p;
    }