20100623 学习记录：浏览器判断2-优快云博客

1.
    if (window.XMLHttpRequest)
    { //Mozilla, Safari,...IE7
        alert('Mozilla, Safari,...IE7!!!!! ');
//IE is [object]
　　 //Mozilla is [object XMLHttpRequest]
     //Safari is [object object]
        if(!window.ActiveXObject)
        { // Mozilla, Safari,...
        alert('Mozilla, Safari' + window.ActiveXObject);
     //Mozilla:undefined
           //Safari:undefined
        }
        else {
            alert('IE7');
        }
    }
    else {
            alert('IE6');
    }

2.
    function myBrowser(){
    var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
    var isOpera = userAgent.indexOf("Opera") > -1;

    if (isOpera){return "Opera" ;} //判断是否Opera浏览器
    if (userAgent.indexOf("Firefox") > -1){return "FF";} //判断是否Firefox浏览器
    if (userAgent.indexOf("Safari") > -1){return "Safari";} //判断是否Safari浏览器
    if (userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera){return "IE";} //判断是否IE浏览器
　　//isChrome = userAgent.indexOf("Chrome") > -1 ; //判断是否Chrome
　　//sMaxthon = userAgent.indexOf("Maxthon") > -1 ; //判断是否傲游3.0
    } //myBrowser() end

    //以下是调用上面的函数

if(myBrowser()=="IE"){alert("我是 IE");}
    if(myBrowser()=="FF"){alert("我是 Firefox");}
    if(myBrowser()=="Opera"){alert("我是 Opera");}
    if(myBrowser()=="Safari"){alert("我是 Safari");}

    //下面这两句是显示 navigator.userAgent 信息以方便理解
    var userAgent = navigator.userAgent;
    document.write(userAgent);
    //你可以把它干掉

//IE: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.1; GTB0.0; InfoPath.2; .NET CLR 2.0.50727; .NET CLR 3.0.04506.648; .NET CLR 3.5.21022)

//FF: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6

//Safari: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/525.19 (KHTML, like Gecko) Version/3.1.2 Safari/525.21

//Opera: Opera/9.80 (Windows NT 5.1; U; zh-cn) Presto/2.2.15 Version/10.10

//Chrome: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/533.4 (KHTML, like Gecko) Chrome/5.0.375.23 Safari/533.4

判断浏览器and版本

http://blog.youkuaiyun.com/singlebear/archive/2009/06/21/4286931.aspx

example

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>QQ群 29032448 前端开发 </title>
<mce:script type="text/javascript"></mce:script>
</head>
<body>
<div id="ua"></div>
</body>
</html>

example2

/**
* @deprecated 获取浏览器类型,调用getOS();
* @return 浏览器名字
*
*/
function getOS()
{
if(navigator.userAgent.indexOf("MSIE")>0)
{
   return "MSIE";
}
else if(isFirefox = navigator.userAgent.indexOf("Firefox")>0)
{
   return "Firefox";
}
else if(isSafari = navigator.userAgent.indexOf("Safari")>0)
{
   return "Safari";
}
else if(isCamino = navigator.userAgent.indexOf("Camino")>0)
{
   return "Camino";
}
else if(isMozilla = navigator.userAgent.indexOf("Gecko/")>0)
{
   return "Gecko";
}
else
{
   return "";
}
}

function versionNumber()
{
return parseFloat(navigator.appVersion);
}

var isIE6 = navigator.userAgent.indexOf("MSIE")>0 && parseFloat(navigator.appVersion) == 6;
var isIE7 = navigator.userAgent.indexOf("MSIE")>0 && parseFloat(navigator.appVersion) == 7;
var isFirefox2 = navigator.userAgent.indexOf("Firefox")>0 && parseFloat(navigator.appVersion) == 2;
var isFirefox3 = navigator.userAgent.indexOf("Firefox")>0 && parseFloat(navigator.appVersion) == 3;

第一种，只区分浏览器，不考虑版本

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>

<script type="text/javascript">

function myBrowser(){
var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
var isOpera = userAgent.indexOf("Opera") > -1;

if (isOpera){return "Opera"}; //判断是否Opera浏览器
if (userAgent.indexOf("Firefox") > -1){return "FF";} //判断是否Firefox浏览器
if (userAgent.indexOf("Safari") > -1){return "Safari";} //判断是否Safari浏览器
if (userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera){return "IE";} ; //判断是否IE浏览器
} //myBrowser() end

//以下是调用上面的函数

if(myBrowser()=="IE"){alert("我是 IE");}
if(myBrowser()=="FF"){alert("我是 Firefox");}
if(myBrowser()=="Opera"){alert("我是 Opera");}
if(myBrowser()=="Safari"){alert("我是 Safari");}

//下面这两句是显示 navigator.userAgent 信息以方便理解
var userAgent = navigator.userAgent;
document.write(userAgent);
//你可以把它干掉

</script>
</head>

<body>
</body>
</html>

第二种，区分浏览器，并考虑IE5.5 6 7 8

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script type="text/javascript">
function myBrowser(){
var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
var isOpera = userAgent.indexOf("Opera") > -1; //判断是否Opera浏览器
var isIE = userAgent.indexOf("compatible") > -1 && userAgent.indexOf("MSIE") > -1 && !isOpera ; //判断是否IE浏览器
var isFF = userAgent.indexOf("Firefox") > -1 ; //判断是否Firefox浏览器
var isSafari = userAgent.indexOf("Safari") > -1 ; //判断是否Safari浏览器

if(isIE){
   var IE5 = IE55 = IE6 = IE7 = IE8 = false;
   var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
   reIE.test(userAgent);
   var fIEVersion = parseFloat(RegExp["$1"]);

   IE55 = fIEVersion == 5.5 ;
   IE6 = fIEVersion == 6.0 ;
   IE7 = fIEVersion == 7.0 ;
   IE8 = fIEVersion == 8.0 ;

   if(IE55){ return "IE55"; }
   if(IE6){ return "IE6"; }
   if(IE7){ return "IE7"; }
   if(IE8){ return "IE8"; }
}//isIE end

if(isFF){ return "FF"; }
if(isOpera){ return "Opera"; }

}//myBrowser() end

//以下是调用上面的函数

if(myBrowser()=="FF"){alert("我是 Firefox");}
if(myBrowser()=="Opera"){alert("我是 Opera");}
if(myBrowser()=="Safari"){alert("我是 Safari");}

if(myBrowser()=="IE55"){alert("我是 IE5.5");}
if(myBrowser()=="IE6"){alert("我是 IE6");}
if(myBrowser()=="IE7"){alert("我是 IE7");}
if(myBrowser()=="IE8"){alert("我是 IE8");}

//下面这两句是显示 navigator.userAgent 信息以方便理解
var userAgent = navigator.userAgent;
document.write(userAgent);
//你可以把它干掉

</script>
</head>

<body >
</body>
</html>

转载于:https://www.cnblogs.com/neru/archive/2010/06/23/1763227.html