js判断是pc端还是移动端

转载自http://www.cnblogs.com/babycool/p/3583114.html

function browserRedirect() {      var sUserAgent = navigator.userAgent.toLowerCase();      var bIsIpad = sUserAgent.match(/ipad/i) == "ipad";      var bIsIphoneOs = sUserAgent.match(/iphone os/i) == "iphone os";      var bIsMidp = sUserAgent.match(/midp/i) == "midp";      var bIsUc7 = sUserAgent.match(/rv:1.2.3.4/i) == "rv:1.2.3.4";      var bIsUc = sUserAgent.match(/ucweb/i) == "ucweb";      var bIsAndroid = sUserAgent.match(/android/i) == "android";      var bIsCE = sUserAgent.match(/windows ce/i) == "windows ce";      var bIsWM = sUserAgent.match(/windows mobile/i) == "windows mobile";      document.writeln("您的浏览设备为：");      if (bIsIpad || bIsIphoneOs || bIsMidp || bIsUc7 || bIsUc || bIsAndroid || bIsCE || bIsWM) {          alert("移动");     } else {          alert("pc");      }  }
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方法二：

var browser={      versions:function(){           var u = navigator.userAgent;        var app = navigator.appVersion;           return {//移动终端浏览器版本信息               trident: u.indexOf('Trident') > -1, //IE内核              presto: u.indexOf('Presto') > -1, //opera内核              webKit: u.indexOf('AppleWebKit') > -1, //苹果、谷歌内核              gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1, //火狐内核              mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否为移动终端              ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios终端              android: u.indexOf('Android') > -1 || u.indexOf('Linux') > -1, //android终端或者uc浏览器              iPhone: u.indexOf('iPhone') > -1 , //是否为iPhone或者QQHD浏览器              iPad: u.indexOf('iPad') > -1, //是否iPad                webApp: u.indexOf('Safari') == -1 //是否web应该程序，没有头部与底部          };      }(),      language:(navigator.browserLanguage || navigator.language).toLowerCase()  }   if(browser.versions.mobile || browser.versions.ios || browser.versions.android || browser.versions.iPhone || browser.versions.iPad){            if(/pc\.html/i.test(window.location.href)){        window.location = "phone.html";    }}else if(/phone\.html/i.test(window.location.href)){    window.location = "pc.html";}