js 判断window操作系统 2种方法

js 判断window操作系统  1
function detectOS() {
    var sUserAgent = navigator.userAgent;
    var isWin = (navigator.platform == "Win32") || (navigator.platform == "Windows");
    var isMac = (navigator.platform == "Mac68K") || (navigator.platform == "MacPPC") || (navigator.platform == "Macintosh") || (navigator.platform == "MacIntel");
    if (isMac) return "Mac";
    var isUnix = (navigator.platform == "X11") && !isWin && !isMac;
    if (isUnix) return "Unix";
    var isLinux = (String(navigator.platform).indexOf("Linux") > -1);
    if (isLinux) return "Linux";
    if (isWin) {
        var isWin2K = sUserAgent.indexOf("Windows NT 5.0") > -1 || sUserAgent.indexOf("Windows 2000") > -1;
        if (isWin2K) return "Win2000";
        var isWinXP = sUserAgent.indexOf("Windows NT 5.1") > -1 || sUserAgent.indexOf("Windows XP") > -1;
        if (isWinXP) return "WinXP";
        var isWin2003 = sUserAgent.indexOf("Windows NT 5.2") > -1 || sUserAgent.indexOf("Windows 2003") > -1;
        if (isWin2003) return "Win2003";
        var isWinVista= sUserAgent.indexOf("Windows NT 6.0") > -1 || sUserAgent.indexOf("Windows Vista") > -1;
        if (isWinVista) return "WinVista";
        var isWin7 = sUserAgent.indexOf("Windows NT 6.1") > -1 || sUserAgent.indexOf("Windows 7") > -1;
        if (isWin7) return "Win7";
    }
    return "other";
}
 
document.writeln("您的操作系统是：" + detectOS());
  

js 判断window操作系统  2

function mobile_device_detect(url){
            var thisOS=navigator.platform;
            var os=new Array("iPhone","iPod","iPad","android","Nokia","SymbianOS","Symbian","Windows Phone","Phone","Linux armv71","MAUI","UNTRUSTED/1.0","Windows CE","BlackBerry","IEMobile");
            for(var i=0;i<os.length;i++){
                if(thisOS.match(os[i])){   
                    window.location=url;
                }
            }
            if(navigator.platform.indexOf('iPad') != -1){
                window.location=url;
            }
            var check = navigator.appVersion;
            if( check.match(/linux/i) ){
                if(check.match(/mobile/i) || check.match(/X11/i)) {
                    window.location=url;
                }  
            }
            Array.prototype.in_array = function(e){
                for(i=0;i<this.length;i++){
                    if(this[i] == e)
                    return true;
                }
                return false;
            }
        } 
        var domain = document.domain;
        if(domain=='qcj.haodai05.cn'){
            mobile_device_detect("http://"+domain+"/mobile");
        }
        if(domain=='qcj.hxtz198.cn')
        {    
            mobile_device_detect("http://"+domain+"/mobile");
        }
        if(domain=='qcj.hxtz78.cn')
        {    
            mobile_device_detect("http://"+domain+"/mobile");
        }
        mobile_device_detect("http://www.qcj18.com/mobile");