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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<script type="text/javascript">
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function sayHi(sName, sMessage) {
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  alert("Hello " + sName + sMessage);
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}
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sayHi("David", " Nice to meet you!");
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</script>
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</body>
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</html>
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