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<!DOCTYPE html> <html> <body> <h2>JavaScript 数组</h2> <p>instanceof 运算符在数组上使用时返回 true：</p> <p id="demo"></p> <script> var fruits = ["香蕉","橙子","苹果","芒果"]; document.getElementById("demo").innerHTML = fruits instanceof Array; </script> </body> </html>