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<!DOCTYPE html> <html> <body> <h1>Array includes()</h1> <p>检查水果数组是否包含“芒果”：</p> <p id="demo"></p> <p><strong>注意：</strong> Edge 13（及更早版本）不支持 includes 方法。</p> <script> var fruits = ["香蕉","橙子","苹果","芒果"]; var n = fruits.includes("芒果"); document.getElementById("demo").innerHTML = n; </script> </body> </html>