<select onchange="dr_go_page(this.value)">
    {php $pp = range(1,$nums);}
    {loop $pp $p}
    <option value="{$p}">第{$p}页</option>
    {/loop}
</select>
<script>
    function dr_go_page(value) {
        var url="{$urlrule}";
        if (value) {
            location.href=url.replace('%7Bpage%7D', value);
        }
    }
    </script>