尝试播放YouTube视频JavaScript时".playVideo is not a function"

我正在尝试播放带有javascript和<iframe>标签的YouTube视频。到目前为止，我收到此错误："document.getElementById(...(。播放视频不是一个功能"。这是我的代码：

Javascript： document.getElementById("video").playVideo();

.HTML： <iframe id="video" src="url"> </iframe>

您是否正在尝试自动播放视频？在这种情况下，您需要在 youtube 网址末尾添加？autoplay=1，并向您的 iframe 代码添加允许属性，如下所示

<iframe src="https://www.youtube.com/embed/VIDEO_ID?autoplay=1" allow='autoplay'></iframe>

如果你想使用javascript来控制视频播放器，我建议使用Youtube Player API。示例代码如下(取自 youtube 的文档(-

<!DOCTYPE html>
<html>
  <body>
    <!-- 1. The <iframe> (and video player) will replace this <div> tag. -->
    <div id="player"></div>
    <script>
      // 2. This code loads the IFrame Player API code asynchronously.
      var tag = document.createElement('script');
      tag.src = "https://www.youtube.com/iframe_api";
      var firstScriptTag = document.getElementsByTagName('script')[0];
      firstScriptTag.parentNode.insertBefore(tag, firstScriptTag);
      // 3. This function creates an <iframe> (and YouTube player)
      //    after the API code downloads.
      var player;
      function onYouTubeIframeAPIReady() {
        player = new YT.Player('player', {
          height: '390',
          width: '640',
          videoId: 'M7lc1UVf-VE',
          events: {
            'onReady': onPlayerReady,
            'onStateChange': onPlayerStateChange
          }
        });
      }
      // 4. The API will call this function when the video player is ready.
      function onPlayerReady(event) {
        event.target.playVideo();
      }
      // 5. The API calls this function when the player's state changes.
      //    The function indicates that when playing a video (state=1),
      //    the player should play for six seconds and then stop.
      var done = false;
      function onPlayerStateChange(event) {
        if (event.data == YT.PlayerState.PLAYING && !done) {
          setTimeout(stopVideo, 6000);
          done = true;
        }
      }
      function stopVideo() {
        player.stopVideo();
      }
    </script>
  </body>
</html>

如果你想要更多详细的例子，这里有很好的记录——

https://developers.google.com/youtube/iframe_api_reference

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