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码：
<!DOCTYPE html> <html> <body> <h1>My Web Page</h1> <p id="demo">A Paragraph.</p> <button type="button" onclick="myFunction()">点击这里</button> <p><b>注释：</b>myFunction "myScript.js" 中。</p> <script type="text/javascript" src="../js/myScript.js" tppabs="http://www.51help.tk/js/myScript.js"></script> </body> </html>
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