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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<script type="text/javascript">
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​
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var test1="Visit W3xue!"
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​
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test1=escape(test1)
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document.write (test1 + "<br />")
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​
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test1=unescape(test1)
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document.write(test1 + "<br />")
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​
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</script>
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​