利用JS判斷客戶端類型你應該知道的四種方法

<script type="text/javascript">
 var u = navigator.userAgent;
 var isAndroid = u.indexOf('Android') > -1 || u.indexOf('Adr') > -1; //android終端
 var isiOS = !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/); //ios終端
 alert('是否是Android：'+isAndroid);
 alert('是否是iOS：'+isiOS);
</script>

<script type="text/javascript">
//判斷訪問終端
var browser={
 versions:function(){
 var u = navigator.userAgent, 
 app = navigator.appVersion;
 return {
 trident: u.indexOf('Trident') > -1, //IE內核
 presto: u.indexOf('Presto') > -1, //opera內核
 webKit: u.indexOf('AppleWebKit') > -1, //蘋果、谷歌內核
 gecko: u.indexOf('Gecko') > -1 && u.indexOf('KHTML') == -1,//火狐內核
 mobile: !!u.match(/AppleWebKit.*Mobile.*/), //是否為移動終端
 ios: !!u.match(/\(i[^;]+;( U;)? CPU.+Mac OS X/), //ios終端
 android: u.indexOf('Android') > -1 || u.indexOf('Adr') > -1, //android終端
 iPhone: u.indexOf('iPhone') > -1 , //是否為iPhone或者QQHD瀏覽器
 iPad: u.indexOf('iPad') > -1, //是否iPad
 webApp: u.indexOf('Safari') == -1, //是否web應該程序，沒有頭部與底部
 weixin: u.indexOf('MicroMessenger') > -1, //是否微信 （2015-01-22新增）
 qq: u.match(/\sQQ/i) == " qq" //是否QQ
 };
 }(),
 language:(navigator.browserLanguage || navigator.language).toLowerCase()
}
</script>

/判斷是否IE內核
if(browser.versions.trident){ alert("is IE"); }
//判斷是否webKit內核
if(browser.versions.webKit){ alert("is webKit"); }
//判斷是否移動端
if(browser.versions.mobile||browser.versions.android||browser.versions.ios){ alert("移動端"); }

currentLang = navigator.language; //判斷除IE外其他瀏覽器使用語言
if(!currentLang){//判斷IE瀏覽器使用語言
currentLang = navigator.browserLanguage;
}
alert(currentLang);

if (/(iPhone|iPad|iPod|iOS)/i.test(navigator.userAgent)) { //判斷iPhone|iPad|iPod|iOS
 //alert(navigator.userAgent); 
 window.location.href ="iPhone.html";
} else if (/(Android)/i.test(navigator.userAgent)) { //判斷Android
 //alert(navigator.userAgent); 
 window.location.href ="Android.html";
} else { //pc
 window.location.href ="pc.html";
};

<script>
　　//判斷是否手機端訪問
 var userAgentInfo = navigator.userAgent.toLowerCase();
 var Agents = ["android", "iphone",
 "symbianos", "windows phone",
 "ipad", "ipod"];
 var ly=document.referrer; //返回導航到當前網頁的超鏈接所在網頁的URL
 for (var v = 0; v < Agents.length; v++) {
 if (userAgentInfo.indexOf(Agents[v]) >= 0&&(ly==""||ly==null)) {
 this.location.href='http://m.***.com'; //wap端地址
 }
 }
</script>

<script type="text/javascript">
 // borwserRedirect
 (function browserRedirect(){
 var sUserAgent = navigator.userAgent.toLowerCase();
 var bIsIpad = sUserAgent.match(/ipad/i) == 'ipad';
 var bIsIphone = 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) == 'web';
 var bIsCE = sUserAgent.match(/windows ce/i) == 'windows ce';
 var bIsWM = sUserAgent.match(/windows mobile/i) == 'windows mobile';
 var bIsAndroid = sUserAgent.match(/android/i) == 'android';
 var pathname = location.pathname
 if(bIsIpad || bIsIphone || bIsMidp || bIsUc7 || bIsUc || bIsCE || bIsWM || bIsAndroid ){
 window.location.+pathname; //wap端地址
 }
 })();
 </script>