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<!DOCTYPE html>
<html>
<body>
<p>本例演示如何将 "onplay" 事件分配给 audio 元素。</p>
<p>Press play.</p>
<audio controls onplay="myFunction()">
  <source src="/i/horse.ogg" type="audio/ogg">
  <source src="/i/horse.mp3" type="audio/mpeg">
  Your browser does not support the audio element.
</audio>
<script>
function myFunction() {
  alert("The audio started to play");
}
</script>
</body>
</html>