案例：html/html5 案例     状态：可编辑再运行    进入竖版
 运行结果　
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<!DOCTYPE html>
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<html>
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<body>
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​
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<menu>
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<command onclick="alert('Hello World')" type="radio" radiogroup="group1">Click Me!</command><br />
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<command onclick="alert('Good morning!')">Click This!</command><br />
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<command onclick="alert('Good day!')" type="radio" radiogroup="group1">And this!</command>
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</menu>
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​
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</body>
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</html>
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​