使用循环自动播放.mp3文件的语法

<audio controls loop>
  <source src="audio.mp3" type="audio/mpeg">
  Your browser does not support the audio element.
</audio>

<audio controls loop autoplay>
  <source src="audio.mp3" type="audio/mpeg">
  Your browser does not support the audio element.
</audio>

<audio id="myAudio" controls loop autoplay>
  <source src="audio.mp3" type="audio/mpeg">
  Your browser does not support the audio element.
</audio>

<script>
  var audio = document.getElementById("myAudio");
  audio.play(); // 自动播放

  // 循环播放
  audio.addEventListener("ended", function() {
    audio.currentTime = 0; // 重置播放位置
    audio.play();
  });
</script>