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<!DOCTYPE html> <html> <body> <p id="p1">Hello World!</p> <p id="p2">Hello World!</p> <script> document.getElementById("p2").style.color = "blue"; document.getElementById("p2").style.fontFamily = "Arial"; document.getElementById("p2").style.fontSize = "larger"; </script> <p>上面的段落被脚本更改了。</p> </body> </html>