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<!DOCTYPE html> <html> <body> <p>单击按钮，用值“Kiwi”填充所有数组元素。</p> <button onclick="myFunction()">试一试</button> <p id="demo"></p> <p><strong>注意：</strong> IE 11（及更早版本）不支持 fill() 方法。</p> <script> var fruits = ["香蕉","橙子","苹果","芒果"]; document.getElementById("demo").innerHTML = fruits; function myFunction() { document.getElementById("demo").innerHTML = fruits.fill("Kiwi"); } </script> </body> </html>