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<!DOCTYPE html> <html> <body> <h2>JavaScript 数组</h2> <p>JavaScript 数组元素是使用数字索引（从 0 开始）访问的。</p> <p id="demo"></p> <script> var fruits = ["香蕉","橙子","苹果","芒果"]; var first = fruits[0]; document.getElementById("demo").innerHTML = first; </script> </body> </html>