完整的用戶代理字符串檢測腳本，包括檢測呈現引擎、平臺、windows操作系統、移動設備和游戲系統

var client = function(){//rendering enginesvar engine = { ie: 0,gecko: 0,webkit: 0,khtml: 0,opera: 0,//complete versionver: null };//browsersvar browser = {//browsersie: 0,firefox: 0,safari: 0,konq: 0,opera: 0,chrome: 0,safari: 0,//specific versionver: null};//platform/device/OSvar system = {win: false,mac: false,x11: false,//mobile devicesiphone: false,ipod: false,nokiaN: false,winMobile: false,macMobile: false,//game systemswii: false,ps: false }; //detect rendering engines/browsersvar ua = navigator.userAgent; if (window.opera){engine.ver = browser.ver = window.opera.version();engine.opera = browser.opera = parseFloat(engine.ver);} else if (/AppleWebKit\/(\S+)/.test(ua)){engine.ver = RegExp["$1"];engine.webkit = parseFloat(engine.ver);//figure out if it's Chrome or Safariif (/Chrome\/(\S+)/.test(ua)){browser.ver = RegExp["$1"];browser.chrome = parseFloat(browser.ver);} else if (/Version\/(\S+)/.test(ua)){browser.ver = RegExp["$1"];browser.safari = parseFloat(browser.ver);} else {//approximate versionvar safariVersion = 1;if (engine.webkit < 100){safariVersion = 1;} else if (engine.webkit < 312){safariVersion = 1.2;} else if (engine.webkit < 412){safariVersion = 1.3;} else {safariVersion = 2;} browser.safari = browser.ver = safariVersion; }} else if (/KHTML\/(\S+)/.test(ua) || /Konqueror\/([^;]+)/.test(ua)){engine.ver = browser.ver = RegExp["$1"];engine.khtml = browser.konq = parseFloat(engine.ver);} else if (/rv:([^\)]+)\) Gecko\/\d{8}/.test(ua)){ engine.ver = RegExp["$1"];engine.gecko = parseFloat(engine.ver);//determine if it's Firefoxif (/Firefox\/(\S+)/.test(ua)){browser.ver = RegExp["$1"];browser.firefox = parseFloat(browser.ver);}} else if (/MSIE ([^;]+)/.test(ua)){ engine.ver = browser.ver = RegExp["$1"];engine.ie = browser.ie = parseFloat(engine.ver);}//detect browsersbrowser.ie = engine.ie;browser.opera = engine.opera;//detect platformvar p = navigator.platform;system.win = p.indexOf("Win") == 0;system.mac = p.indexOf("Mac") == 0;system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);//detect windows operating systemsif (system.win){if (/Win(?:dows )?([^do]{2})\s?(\d+\.\d+)?/.test(ua)){if (RegExp["$1"] == "NT"){switch(RegExp["$2"]){case "5.0":system.win = "2000";break;case "5.1":system.win = "XP";break;case "6.0":system.win = "Vista";break;default:system.win = "NT";break; } } else if (RegExp["$1"] == "9x"){system.win = "ME";} else {system.win = RegExp["$1"];}}}//mobile devicessystem.iphone = ua.indexOf("iPhone") > -1;system.ipod = ua.indexOf("iPod") > -1;system.nokiaN = ua.indexOf("NokiaN") > -1;system.winMobile = (system.win == "CE");system.macMobile = (system.iphone || system.ipod);//gaming systemssystem.wii = ua.indexOf("Wii") > -1;system.ps = /playstation/i.test(ua);//return itreturn {engine: engine,browser: browser,system: system };}();

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轉載于:https://www.cnblogs.com/yingsmirk/archive/2012/04/05/2433623.html

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