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Tryit: JAVASCRIPT
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<!DOCTYPE html> <html> <body> <p>单击该按钮可将图像的颜色更改为黑白（100% 灰色）。</p> <button onclick="myFunction()">试一试</button><br><br> <img id="myImg" src="/cssref/pineapple.jpg" alt="菠萝" width="300" height="300"> <p><strong>注意：</strong>filter 过滤器属性在 Internet Explorer 或 Edge 12 中不起作用。</p> <script> function myFunction() { document.getElementById("myImg").style.filter = "grayscale(100%)"; } </script> </body> </html>