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编辑您的代码：
<html> <body> <script type="text/javascript"> var d = new Date() var time = d.getHours() if (time<10) { document.write("<b>Good morning</b>") } else if (time>=10 && time<16) { document.write("<b>Good day</b>") } else { document.write("<b>Hello World!</b>") } </script> <p>本例演示 if..else if...else 语句。</p> </body> </html>
查看结果: