thinkphp 5.1 模板中三元比较失效

问题描述

<select name="tra_num"><option value="" {$num_tra=="%"?'selected':''}>全部</option>{volist name="list_tra" id="arr_tra" empty="没有文章"}<option value="{$arr_tra.id}" { {$num_tra} == {$arr_tra.id} ?'selected':''}>{$arr_tra.id}</option>{/volist} </select>

这样写双花括号无效 从调试程序中看是以下状况

<select name="tra_num"><option value="" >全部</option><option value="1" { (7 == 1 ?'selected':'')}>1</option><option value="2" { (7 == 2 ?'selected':'')}>2</option><option value="4" { (7 == 4 ?'selected':'')}>4</option><option value="5" { (7 == 5 ?'selected':'')}>5</option><option value="6" { (7 == 6 ?'selected':'')}>6</option><option value="7" { (7 == 7 ?'selected':'')}>7</option> </select> </div>

问题解答

中文的{吧，还是你改了模板标签了