注意：以下方法只适用于IE11 以下：

TypeError: Cannot read property 'msie' of undefined  

jquery1.9去掉了 $.browser  所以报错 官方说明 ： 

方法 1  大佬的贴：   

/** * Returns the version of Internet Explorer or a -1 * (indicating the use of another browser). */function getInternetExplorerVersion(){    var rv = -1; // Return value assumes failure.    if (navigator.appName == 'Microsoft Internet Explorer')    {        var ua = navigator.userAgent;        var re  = new RegExp("MSIE ([0-9]{1,}[\.0-9]{0,})");        if (re.exec(ua) != null)            rv = parseFloat( RegExp.$1 );    }    return rv;}function checkVersion(){    var msg = "You're not using Internet Explorer.";    var ver = getInternetExplorerVersion();    if ( ver > -1 )    {        if ( ver >= 8.0 )             msg = "You're using a recent copy of Internet Explorer."        else            msg = "You should upgrade your copy of Internet Explorer.";    }    alert( msg );}

方法 2：

// ----------------------------------------------------------// A short snippet for detecting versions of IE in JavaScript// without resorting to user-agent sniffing// ----------------------------------------------------------// If you're not in IE (or IE version is less than 5) then://     ie === undefined// If you're in IE (>=5) then you can determine which version://     ie === 7; // IE7// Thus, to detect IE://     if (ie) {}// And to detect the version://     ie === 6 // IE6//     ie > 7 // IE8, IE9 ...//     ie < 9 // Anything less than IE9// ----------------------------------------------------------// UPDATE: Now using Live NodeList idea from @jdaltonvar ie = (function(){    var undef,        v = 3,        div = document.createElement('div'),        all = div.getElementsByTagName('i');    while (        div.innerHTML = '
     ',        all[0]    );    return v > 4 ? v : undef;}());

方法 3

if (navigator.userAgent.toLowerCase().indexOf('msie 6') != -1){

}

6为你要测试的版本号