useragent
<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>title</title><script>// 通过userAgent可以判断用户浏览器的类型console.log(window.navigator.userAgent);//通过platform可以判断浏览器所在的系统平台类型.//console.log(window.navigator.platform);</script>
</head>
<body></body>
</html>