实例 - 在线编辑器

          <style>
video {
  width: 320px;
  height: 180px;
}
</style>

<video controls src="/examples/movie.mp4"></video>

<script>
let video = document.querySelector('video');
video.addEventListener('loadedmetadata', () => {
  const track = video.addTextTrack("captions", "简体中文Subtitles", "zh_CN");
  track.mode = "showing";

  const cueCn = new VTTCue(0, 2.500, '字幕会在0至2.5秒间显示');
  track.addCue(cueCn);

  const cueEn = new VTTCue(2.6, 4, 'Subtitles will display between 2.6 and 4 seconds');
  track.addCue(cueEn);
});
</script>

        