在”</select>“后面直接粘贴<select name="passenger_1_seat_detail_select"style="display:block" id="passenger_1_seat_detail_select"onchange="setSeatDetail(‘1‘)"><option value="0">随机</option><option value="3">上铺</option><option value="2">中铺</option><option value="1">下铺</option></select>
原文：http://www.cnblogs.com/dreamy890322/p/4791033.html