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

<h1>Navigator 对象</h1>

<p>platform 属性返回浏览器平台(操作系统):</p>

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

<script>
document.getElementById("demo").innerHTML = 
"navigator.platform 是:" + navigator.platform;
</script>

</body>
</html>
运行结果: