<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>判断当前浏览器是否为IE</title>
<script type="text/javascript">
window.onload = function(){
var ua = navigator.userAgent;
console.log(ua);
// * Chrome--
// * Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36
// *
// * Firefox--
// * Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:88.0) Gecko/0101 Firefox/88.0
// *
// * IE11--
// * Mozilla/5.0 (Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; Tablet PC 2.0; rv:11.0) like Gecko
// *
// * IE10
// * Mozilla/5.0 (compatible; MSIE 10.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; Tablet PC 2.0)
// *
// * IE9
// * Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; Tablet PC 2.0)
// *
// * IE8
// * Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 10.0; WOW64; Trident/7.0; .NET4.0C; .NET4.0E; Tablet PC 2.0)
// *
if("ActiveXObject" in window){
alert("你是IE浏览器！");
}else{
if(/Chrome/i.test(ua)){
alert("你是Chrome浏览器！");
}else if(/Firefox/i.test(ua)){
alert("你是Firefox浏览器！");
}
}
};
</script>
</head>
<body>
</body>
</html>
