案例:javascript案例     状态:可编辑再运行    进入竖版
 运行结果 
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<html>
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<body>
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<p>
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<a id="myAnchor" 
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href="//www.w3xue.com">W3xue.com</a>
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</p>
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<script type="text/javascript">
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x=document.getElementById("myAnchor");
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x.charset="ISO-8859-1";
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document.write(x.charset);
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</script>
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</body>
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</html>