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broser.html
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<!DOCTYPE HTML>
<html>
<head>
<title>JavaScript获取浏览器类型与版本</title>
<script type="text/javascript">
function checkBrowserVersion(){
var browser=navigator.appName
console.log(browser)
var b_version=navigator.appVersion
var version=parseFloat(b_version)
if(browser === 'Netscape' && version < 5){
// alert("请下载最新版浏览器")
window.location.href="https://www.google.cn/chrome/"
return false
}
var userAgent = navigator.userAgent.toLowerCase();
var regStr_ie = /msie [\d.]+;/gi ;
var regStr_ff = /firefox\/[\d.]+/gi
var regStr_chrome = /chrome\/[\d.]+/gi ;
var regStr_saf = /safari\/[\d.]+/gi ;
console.log(navigator)
console.log(userAgent)
if(userAgent.indexOf("Opera") > -1 || userAgent.indexOf("OPR") > -1){
console.log('Opera')
return 'Opera';
}
else if(userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1){
console.log('IE')
return 'IE';
}
else if(userAgent.indexOf("Edge") > -1){
console.log('Edge')
return 'Edge';
}
else if(userAgent.indexOf("Firefox") > -1){
console.log('Firefox')
return 'Firefox';
}
else if(userAgent.indexOf("Safari") > -1 && userAgent.indexOf("Chrome") == -1){
console.log('Safari')
return 'Safari';
}
else if(userAgent.indexOf("Chrome") > -1 && userAgent.indexOf("Safari") > -1){
console.log('Chrome')
return 'Chrome';
}
else if(!!window.ActiveXObject || "ActiveXObject" in window){
console.log('IE>=11')
return 'IE>=11';
}
else{
console.log('Unkonwn')
return 'Unkonwn';
}
}
document.write('<hr/>');
// 获取当前的浏览器信息
var sys = checkBrowserVersion();
console.log(sys)
// sys.browser得到浏览器的类型，sys.ver得到浏览器的版本
// document.write(sys.browser + "的版本是：" + sys.ver);
</script>
</head>
<body>
</body>
</html>