Youtube api使用特定类别和标签接收随机视频

Question

您好我尝试使用youtube-api类别来创建特定的。它似乎不起作用。我正在尝试为uni项目创建一个youtube类别的音乐网站。我试过从另一篇文章中复制并粘贴它，看看是否有任何变化但没有任何变化。有人可以帮帮我吗？

<!-- 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 = "http://gdata.youtube.com/feeds/api/users/nba/uploads?category=playoffs&alt=json";
      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: 'u1zgFlCw8Aw',
          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();
      }
      function request_yt_videoID(vid)
{
       // Some Code
       player.loadVideoById(vid);
}
    </script>