>距离</td>
                    <td>
                        <input type="range" min="0.1" max="200" step="1" data-bind="value: range, valueUpdate: 'input'">
                        <input type="number" size="2" data-bind="value: range">
                    </td>
                </tr>
                <tr>
                    <td>播放速度</td>
                    <td>
                        <input type="range" min="1" max="10" step="1" data-bind="value: speed, valueUpdate: 'input'">
                   