案例：html/html5 案例     状态：可编辑再运行    进入竖版
 运行结果　
​x
 
1
<!DOCTYPE HTML>
2
<html>
3
<body>
4
​
5
<audio controls="controls" loop="loop">
6
  <source src="/img/song.ogg" type="audio/ogg" />
7
  <source src="/img/song.mp3" type="audio/mpeg" />
8
Your browser does not support the audio element.
9
</audio>
10
​
11
</body>
12
</html>
13
​