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<!DOCTYPE html> <html> <head> <style> #myDIV { border: 1px solid black; background-color: lightblue; width: 150px; white-space: nowrap; overflow: hidden; text-overflow: visible; } </style> </head> <body> <h1>使用 JavaScript 更改文本溢出</h1> <p>单击“试一试”按钮更改 DIV 元素的 text-overflow 属性：</p> <button onclick="myFunction()">试一试</button> <div id="myDIV"> Lorem ipsum dolor sit amet, consectetuer adipiscing elit. </div> <script> function myFunction() { document.getElementById("myDIV").style.textOverflow = "ellipsis"; } </script> </body> </html>