         <input id="picture" name="picture" placeholder="文章图片/可使用外链" class="layui-input"/>
                        <div class="layui-upload" style="margin-top: 10px">
                            <button type="button" class="layui-btn" id="image">上传图片</button>
                            <div class="layui-upload-list">
                                <img class="layui-upload-img" id="image_url">
                            </div>
                        </div>
                      