             <div class="flip-container">
                                <div class="paddle-demo-block-wrapper">
                                    <div class="h2">操作面板：</div><input type="file" id="uploadImg">
                                    <p class="help-block">点击按钮，选择图片触发计算.</p>
                                    <div class="paddle-demo-block-wrapper">
                                        <img id="image" src="../img/banana.jpeg" style="height: 50px" alt="Resp