IE浏览器678版本判断

项目支持IE9以上,增加判断678给提示,这里记录几个方法:

<!DOCTYPE html>
<html>
    <head>
        <meta charset='utf-8'>
    </head>
    <body>
        
        <script>
            //判断ie最简洁的代码
            var ie = !-[1,]; 
            alert(ie);
            
    /*    ieTester ie6好使,ie78没用,但是用ie9的f12修改浏览器模式,78好使
            //区分版本判断
            function _ifIe () {
                var userAgent = navigator.userAgent; //取得浏览器的userAgent字符串
                var IE6 = IE7 = IE8 = false;
                var reIE = new RegExp("MSIE (\\d+\\.\\d+);");
                reIE.test(userAgent);
                var fIEVersion = parseFloat(RegExp["$1"]);
                IE6 = fIEVersion == 6.0;
                IE7 = fIEVersion == 7.0;
                IE8 = fIEVersion == 8.0;
                if (IE6) {
                    return "IE6";
                }
                if (IE7) {
                    return "IE7";
                }
                if (IE8) {
                    return "IE8";
                }
            }
            if(_ifIe()) {
                alert('当前浏览器' + _ifIe() + '版本过低,请升级');
            }
    */
    
    /*    ieTester ie6好使,ie78没用,但是用ie9的f12修改浏览器模式,78好使
            var isIE=!!window.ActiveXObject;
            var isIE6=isIE&&!window.XMLHttpRequest;
            var isIE8=isIE&&!!document.documentMode;
            var isIE7=isIE&&!isIE6&&!isIE8;
            if (isIE){
                if (isIE6){
                    alert("ie6");
                }else if (isIE8){
                    alert("ie8");
                }else if (isIE7){
                    alert("ie7");
                }
            }
    */
            var browser=navigator.appName 
            var b_version=navigator.appVersion 
            var version=b_version.split(";"); 
            var trim_Version=version[1].replace(/[ ]/g,""); 
            if(browser=="Microsoft Internet Explorer" && trim_Version=="MSIE6.0") { 
                alert("IE 6.0"); 
            } else if (browser=="Microsoft Internet Explorer" && trim_Version=="MSIE7.0") { 
                alert("IE 7.0"); 
            } else if (browser=="Microsoft Internet Explorer" && trim_Version=="MSIE8.0") { 
                alert("IE 8.0"); 
            } else if (browser=="Microsoft Internet Explorer" && trim_Version=="MSIE9.0") { 
                alert("IE 9.0"); 
            }
    
        </script>
    </body>
</html>

 

posted @ 2018-01-25 17:26  名字不好起啊  阅读(343)  评论(0编辑  收藏  举报