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编辑您的代码：
<!DOCTYPE html> <html> <body> <h1>My Web Page</h1> <p id="demo">A Paragraph.</p> <div id="myDIV">A DIV.</div> <script> document.getElementById("demo").innerHTML="Hello World"; document.getElementById("myDIV").innerHTML="How are you?"; </script> </body> </html>
查看结果: