HTML 音频/视频 DOM autoplay 属性

HTML audio/video 标签参考手册 HTML 音频/视频 DOM 参考手册

启用自动播放，并重载视频：

代码
结果

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
</head>
<body>

  <button onclick="enableAutoplay()" type="button">启动自动播放</button>
  <button onclick="disableAutoplay()" type="button">禁用自动播放</button>
  <button onclick="checkAutoplay()" type="button">检查自动播放状态</button>
  <br>
  <video id="video1" controls="controls">
  <source src="/examples/mov_bbb.mp4" type="video/mp4">
  <source src="/examples/mov_bbb.ogg" type="video/ogg">
  您的浏览器不支持 HTML5 video  标签。
</video>

  <script>
    myVid = document.getElementById("video1");

    function enableAutoplay() {
      myVid.autoplay = true;
      myVid.load();
    }

    function disableAutoplay() {
      myVid.autoplay = false;
      myVid.load();
    }

    function checkAutoplay() {
      alert(myVid.autoplay);
    }
  </script>

  <p>Video courtesy of <a href="http://www.bigbuckbunny.org/" target="_blank">Big Buck Bunny</a>.</p>

</body>
</html>