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<!DOCTYPE html> <html> <head> <style> #myDIV { background-color: coral; color: white; } </style> </head> <body> <h1>使用 JavaScript 更改文本对齐方式</h1> <p>单击“试一试”按钮右对齐 DIV 元素的文本：</p> <button onclick="myFunction()">试一试</button> <div id="myDIV"> <h1>myDIV</h1> </div> <script> function myFunction() { document.getElementById("myDIV").style.textAlign = "right"; } </script> </body> </html>