代码示例:(标识:eg_js_datatypes_array)
<!DOCTYPE html>
<html>
<body>

<h2>JavaScript 数组</h2>

<p>数组索引基于零,这意味着第一个项目是 [0],第二个项目是 [1],以此类推。</p>

<p id="demo"></p>

<script>
var cars = ["Porsche", "Volvo", "BMW"];

document.getElementById("demo").innerHTML = cars[0];
</script>

</body>
</html>
运行结果: