網(wǎng)頁沒有反應(yīng)什么鬼
<!DOCTYPE html>
<html>
<head>
?? ?<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
?? ?<title>navigator對(duì)象</title>
?? ?<script type="text/javascript">
?? ??? ?var name=navigator.appName();
?? ??? ?var version=navigator.appVersion();
?? ??? ?var plat=navigator.platform();
?? ??? ?var user=navigator.userAgent();
?? ??? ?document.write("瀏覽器的名稱是："+name+"<br>");
?? ??? ?document.write("瀏覽器的平臺(tái)和版本信息："+version+"<br>");
?? ??? ?document.write("運(yùn)行瀏覽器的操作平臺(tái)是："+plat+"<br>");
?? ??? ?document.write("由客戶機(jī)發(fā)送服務(wù)器的user－agent頭部的值"+user);
?? ?</script>
</head>
<body>
</body>
</html>
2016-10-13
var name=navigator.appName;
?? ??? ?var version=navigator.appVersion;
?? ??? ?var plat=navigator.platform;
?? ??? ?var user=navigator.userAgent;
你多加了 （）去掉試試