代码片段 | layui 异步加载的数据添加到select的option中

<div class="layui-inline">
              <label class="layui-form-label">控制器</label>
              <div class="layui-input-inline">
                <select name="control" lay-filter="control">
                  <option value="0">---未选择---</option>
                  <?php if(is_array($controllers)): ?>
                  <?php foreach($controllers as $k=>$vo):?>
                  <option value="{$vo}">{$vo}</option>
                  <?php  endforeach; endif; ?>
                </select>
              </div>
            </div>
            <div class="layui-inline">
              <label class="layui-form-label">方法</label>
              <div class="layui-input-inline">
                <select name="act" >
                    <option value="0">---未选择---</option>
                </select>
              </div>
            </div>
            

form.on('select(control)', function(data){
      var control = data.value
      $.ajax({
        type:'get',
        url:"{:url('config/get_action')}",
        data:{control:control},
        dataType:'json',
        success:function(res){
          $("select[name=act]").html("");
          for(var i=0;i<res.length;i++){
            option='<option value ="'+res[i]+'">'+res[i]+'</option>';
            $("select[name=act]").append(option);
          }
          form.render('select');//更新数据        
        }
      })
    });