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<!DOCTYPE html> <html> <head> <style> .grid-container { display: grid; grid-template-columns: auto auto auto auto; grid-gap: 10px; background-color: #2196F3; padding: 10px; } .grid-container > div { background-color: rgba(255, 255, 255, 0.8); text-align: center; padding: 20px 0; font-size: 30px; } </style> </head> <body> <h1>使用 JavaScript 更改 grid-template-columns 属性</h1> <p>单击按钮将网格布局从四列布局更改为三列布局，其中每列的宽度为 50 像素：</p> <p><button onclick="myFunction()">改变布局</button></p> <div class="grid-container" id="myDIV"> <div class="item1">1</div> <div class="item2">2</div> <div class="item3">3</div> <div class="item4">4</div> <div class="item5">5</div> <div class="item6">6</div> <div class="item7">7</div> <div class="item8">8</div> </div> <script> function myFunction() { document.getElementById("myDIV").style.gridTemplateColumns = "50px 50px 50px"; } </script> </body> </html>