            <button id="destroy">销毁</button>
        </div>
    </div>
</div>

<script>
    var $player = document.getElementById('play');
    var $pause = document.getElementById('pause');
    var $destroy = document.getElementById('destroy');
    var $demuxUseWorker = document.getElementById('demuxUseWorker');
    var $mseDecoderUseWorker = document.getElementById('mseDecoderUseWorker');
    var $isFlv = document.getElementById('isFlv');


    var showOperateBtns = true; // 是否显示按钮
    var 