<html>
<audio controls>
<source src="http://cdn.kaishuhezi.com/audio/story/M-1-01-20150408.mp3" type="audio/mpeg">
</audio>
<script>
window.onload=function(){
//do something
var duration = document.getElementById("audio").duration;
//alert(audio.duration);
console.log(formatTime(parseInt(duration)));
}
function formatTime(second) {
return [parseInt(second / 60 % 60), second % 60].join(":").replace(/\b(\d)\b/g, "0$1");
}
</script>
</html>
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