检测旧浏览器的页面中的MP3支持

<audio id="mp3Support"></audio>
<script>
  var audio = document.getElementById('mp3Support');
  var isMP3Supported = audio.canPlayType('audio/mpeg');
  if (isMP3Supported === 'probably' || isMP3Supported === 'maybe') {
    console.log('浏览器支持MP3格式');
  } else {
    console.log('浏览器不支持MP3格式');
  }
</script>

if (typeof Audio !== 'undefined') {
  var audio = new Audio();
  var isMP3Supported = audio.canPlayType('audio/mpeg');
  if (isMP3Supported === 'probably' || isMP3Supported === 'maybe') {
    console.log('浏览器支持MP3格式');
  } else {
    console.log('浏览器不支持MP3格式');
  }
} else {
  console.log('浏览器不支持HTML5的audio元素');
}