n>
                <select id="recordType" onchange="replay()">
                    <option value="webm">webm(音频+视频)</option>
                    <option value="mp4">mp4(视频)</option>
                    <option value="flv" selected>flv(音频+视频)</option>
                </select>
            </div>
        </div>
        <div class="input">
            <div>
                <span style="color: green">Tips:</span> webm(音频+视频)支持在chrome/edge浏览器中，显示时长，支持see