在js脚本里，可以利用navigator.userAgent属性识别用户使用什么系统及什么浏览器

              
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              // ua解析
var UAParse = function(e) {
var r = new Array;
var outputer = '';
if (r = e.match(/MSIE\s([^\s|]+)/gi)) {
outputer = "Internet Explorer | "+r[0].replace('MSIE', '').split('.')[0];

} else if (r = e.match(/FireFox\/([^\s]+)/ig)) {
var r1 = r[0].split("/");
outputer = "IMozilla FireFox | "+ r1[1];
} else if (r = e.match(/Maxthon([\d]*)\/([^\s]+)/ig)) {
var r1 = r[0].split("/");
outputer = 'Maxthon';
} else if (r = e.match(/UBrowser([\d]*)\/([^\s]+)/ig)) {
var r1 = r[0].split("/");
outputer = "UCBrowser | " +r1[1];
} else if (r = e.match(/MetaSr/ig)) {
outputer = '搜狗浏览器'
} else if (r = e.match(/2345Explorer/ig)) {
outputer = '2345王牌浏览器'
} else if (r = e.match(/2345chrome/ig)) {
outputer = '2345加速浏览器'
} else if (r = e.match(/LBBROWSER/ig)) {
outputer = '猎豹安全浏览器'
} else if (r = e.match(/MicroMessenger\/([^\s]+)/ig)) {
var r1 = r[0].split("/");
outputer = "微信 | "+ r1[1].split('/')[0];
} else if (r = e.match(/QQBrowser\/([^\s]+)/ig)) {
var r1 = r[0].split("/");
outputer = "QQ浏览器 | "+ r1[1].split('/')[0];
} else if (r = e.match(/QQ\/([^\s]+)/ig)) {
var r1 = r[0].split("/");
outputer = "QQ浏览器 | "+r1[1].split('/')[0];
} else if (r = e.match(/MiuiBrowser\/([^\s]+)/ig)) {
var r1 = r[0].split("/");
outputer = "Miui浏览器 | "+r1[1].split('/')[0];
} else if (r = e.match(/Chrome([\d]*)\/([^\s]+)/ig)) {
var r1 = r[0].split("/");
outputer = "Chrome | "+r1[1].split('.')[0];
} else if (r = e.match(/safari\/([^\s]+)/ig)) {
var r1 = r[0].split("/");
outputer = "Apple Safari | "+ r1[1];
} else if (r = e.match(/Opera[\s|\/]([^\s]+)/ig)) {
var r1 = r[0].split("/");
outputer = "Opera | "+r[1];
} else if (r = e.match(/Trident\/7.0/gi)) {
outputer = "Internet Explorer 11";
} else {
outputer = '其它浏览器'
}
return outputer
}

// os解析
var OSParse = function(e) {
var os = ''
if (e.match(/win/ig)) {
if (e.match(/nt 5.1/ig)) {
os = 'Windows XP';
} else if (e.match(/nt 6.1/ig)) {
os = 'Windows 7';
} else if (e.match(/nt 6.2/ig)) {
os = 'Windows 8';
} else if (e.match(/nt 6.3/ig)) {
os = 'Windows 8.1';
} else if (e.match(/nt 10.0/ig)) {
os = 'Windows 10';
} else if (e.match(/nt 6.0/ig)) {
os = 'Windows Vista';
} else if (e.match(/nt 5/ig)) {
os = 'Windows 2000'
} else {
os = 'Windows';
}
} else if (e.match(/android/ig)) {
os = 'Android';
} else if (e.match(/ubuntu/ig)) {
os = 'Ubuntu';
} else if (e.match(/linux/ig)) {
os = 'Linux';
} else if (e.match(/iphone/ig)) {
os = 'iPhone OS';
} else if (e.match(/mac/ig)) {
os = 'Mac OS X';
} else if (e.match(/unix/ig)) {
os = 'Unix';
} else {
os = 'Other';
}
return os
}

alert('当前系统为：'+OSParse(navigator.userAgent)+' 浏览器为：'+UAParse(navigator.userAgent))

            

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