layui的动态下拉选

<!--将授权问卷id全部查询出来-->
<div class="layui-inline">
<label class="layui-form-label">选择问卷</label>
<div class="layui-input-inline">
<select name="qnId" id="qnId" >
<option value="">请选择</option>
</select>
</div>
</div>

$.ajax({
type: "post",
url: "/custQuestionnaire/list",
data:{page:1,limit:1000},
success: function (result) { if(result.code==200){// qnId
$.each(result.data,function(i,v){
console.log(i+" : "+v.id)
$("#qnId").append("<option value='"+v.id+"'>"+v.title+"</option>");
});
form.render('select');
}
}
});