<select name="tra_num">
<option value="" {$num_tra=="%"?'selected':''}>Alle</option>
{volist name="list_tra " id="arr_tra" empty="Kein Artikel"}
<option value="{$arr_tra.id}" { {$num_tra} == {$arr_tra.id} ?'selected':''}> $ arr_tra.id} & lt;/option & gt;
{/volist}
& lt;/select & gt;
<option value="4" { (7 == 4 ?'selected':'' )}>4</option> < :'')}>6</option>
<option value="7" { (7 == 7 ?'selected':'')}>7</option>
中文的{吧,还是你改了模板标签了