js判断浏览器类型及版本

来源：互联网发布：android ui布局优化编辑：程序博客网时间：2024/05/15 23:45

1.利用js的正则表达式判断浏览器类型及版本号。

2.主要判断IE浏览器、Chrome浏览器、Firefox浏览器、Opera浏览器、Safari浏览器，以及Microsoft Edge浏览器。

3.IE11版本浏览器与IE11以下版本浏览器判断方式不一致。

<script type="text/javascript">document.write(navigator.userAgent.toLowerCase());document.write("<br >");document.write("当前浏览器版本：" + BrowserVersion());function BrowserVersion(){    var Sys = {};    var ua = navigator.userAgent.toLowerCase();        //Edge:    mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/52.0.2743.116 safari/537.36 edge/15.15063    //IE11:    mozilla/5.0 (windows nt 10.0; wow64; trident/7.0; .net4.0c; .net4.0e; .net clr 2.0.50727; .net clr 3.0.30729; .net clr 3.5.30729; rv:11.0) like gecko    //IE6:     mozilla/4.0 (compatible; msie 6.0; windows nt 5.1; sv1)    //Safari:  mozilla/5.0 (windows nt 5.1) applewebkit/534.57.2 (khtml, like gecko) version/5.1.7 safari/534.57.2    //Chrome:  mozilla/5.0 (windows nt 10.0; wow64) applewebkit/537.36 (khtml, like gecko) chrome/61.0.3163.79 safari/537.36    //Firefox: mozilla/5.0 (windows nt 5.1; rv:52.0) gecko/20100101 firefox/52.0    //Opera:   mozilla/5.0 (windows nt 10.0; win64; x64) applewebkit/537.36 (khtml, like gecko) chrome/60.0.3112.90 safari/537.36 opr/47.0.2631.80 (edition baidu)        var s = null;    if ( (s = ua.match(/msie ([\d.]+)/)) != null ) {        Sys.ie = s[1];    }    if ( (s = ua.match(/edge\/([\d.]+)/)) != null ) {        Sys.edge = s[1];    }    if ( (s = ua.match(/firefox\/([\d.]+)/)) != null ) {        Sys.firefox = s[1];    }    if ( (Sys.edge == null) && ((s = ua.match(/chrome\/([\d.]+)/)) != null) ) {        Sys.chrome = s[1];    }    if ( (s = ua.match(/opera.([\d.]+)/)) != null ) {        Sys.opera = s[1];    }    if ( (s = ua.match(/opr\/([\d.]+)/)) != null ) {        Sys.opera = s[1];        Sys.chrome = null;          Sys.safari = null;    }    if ( (s = ua.match(/version\/([\d.]+).*safari/)) != null ) {        Sys.safari = s[1];    }    if ( (Sys.firefox == null ) && (ua.match(/windows nt ([\d.]+)/) != null) && ((s = ua.match(/rv\:([\d.]+)/)) != null) ) {        Sys.ie = s[1];    }    if (Sys.ie) {        return ('IE: ' + Sys.ie);    }    if (Sys.firefox) {        return ('Firefox: ' + Sys.firefox);    }    if (Sys.chrome) {        return ('Chrome: ' + Sys.chrome);    }    if (Sys.opera) {        return ('Opera: ' + Sys.opera);    }    if (Sys.safari) {        return ('Safari: ' + Sys.safari);    }    if (Sys.edge) {        return ('Edge: ' + Sys.edge);    }        return "Unknow";}</script>

参考：http://blog.csdn.net/sunny243788557/article/details/52810058

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