成功的ajax调用后，我正在尝试重新初始化猫头鹰轮播。Ajax调用将更改数据，但视图应保持不变。我遇到了视图轮播结构无法重新初始化的问题。我不知道我在哪里犯错了。

Ajax请求

 $(document).on('click', '.category_list', function() {
    var category_id = $(this).attr('data-id');
    var _token = $('#_token').val();
    var param = 'category_id=' + category_id + '&_token=' + _token;
    $.ajax({
        type: "POST",
        datatype: "json",
        url: "/master/sub_category",
        data: param,
        success: function(result) {
            $('#test').html(result);
            var owl = $(".owl-carousel");
            owl.owlCarousel({
                items: 4,
                navigation: true
            });
        }
    });    
});

控制器功能

public function getImg() {
    $post_data = Request::all();
    $sub_img = $this->imgModel->getImgList($post_data);
    $sub_img_html = '';
    foreach ($sub_img ['data'] as $data_img ) {
        $img = '/img/sub_category/'.$data_img ['img'];            
        $sub_img_html .= '<div class="item">';
        $sub_img_html .= '<img src="'.$img.'" />';
        $sub_img_html .= '</div>';
    }
    echo $sub_img_html;
}

视图

<div id="demo">
    <div id="test" class="owl-carousel">
        <?php
           if (!empty($img_category)) {
              foreach ($img_category as $imgcategory){
        ?>
        <div class="item">
          <img src='/img/sub_category/<?= imgcategory['subcategory_img'] ?>'/></div>
      <?php
           }
        }
     ?>
  </div>
</div>