Gxlsystem TIY Editor
Gxlsystem 在线教程
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<!DOCTYPE html> <html> <body> <h1>JavaScript 数组</h1> <p>length 属性返回数组长度。</p> <p id="demo"></p> <script> var fruits = ["Banana", "Orange", "Apple", "Mango"]; document.getElementById("demo").innerHTML = fruits.length; </script> </body> </html>