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　　手机访问PC端实现自动跳转手机端代码的实现方法有很多，云南龙头科技有限公司小编列出如下几种供大家参考：

第一种：使用百度出品的uaredirect.js来判断客户端是否为手机

<script src="http://www.ynlongtou.com/js-bak/uaredirect-baidu.js" type="text/javascript"></script><script type="text/javascript">uaredirect("http://www.ynlongtou.com/m");</script>

第二种：进入网站自动跳转

<meta http-equiv="refresh" content="0;url= /m ">

第三种：

<script type="text/javascript">

var commonURL = 'http://www.ynlongtou.com/';

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;

    }

  } 

mobile_device_detect("http://www.ynlongtou.com/m");/*指定跳转地址*/

</script>

第四种：

<script type="text/javascript">

(function(Switch){var switch_pc = window.location.hash;if(switch_pc != "#pc"){if(/iphone|ipod|Android|nokia|blackberry|webos|webos|webmate|bada|lg|ucweb|

skyfire|sony|ericsson|mot|samsung|sgh|lg|philips|panasonic|alcatel|lenovo|cldc|midp|wap|mobile/i.test(navigator.userAgent.toLowerCase()))

{Switch.location.href='http://www.ynlongtou.com/m';}}})(window);</script>

<meta name="mobile-agent" content="format=html5;url=http://www.ynlongtou.com/m"/>

<link href="http://www.ynlongtou.com/m" rel="alternate" media="only screen and (max-width:1000px)"/>

第五种：（推荐）

<meta http-equiv="mobile-agent" content="format=xhtml;url=/m/index.asp">

<script type="text/javascript">if(window.location.toString().indexOf('pref=padindex') != -1){}else{if(/AppleWebKit.*Mobile/i.test(navigator.userAgent) || (/MIDP|SymbianOS|NOKIA|SAMSUNG|LG|NEC|TCL|Alcatel|BIRD|DBTEL|Dopod|PHILIPS|HAIER|LENOVO|MOT-|Nokia|SonyEricsson|SIE-|Amoi|ZTE/.test(navigator.userAgent))){if(window.location.href.indexOf("?mobile")<0){try{if(/Android|Windows Phone|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent)){window.location.href="m/index.asp";}else if(/iPad/i.test(navigator.userAgent)){}else{}}catch(e){}}}}</script>

第六种：在head中加入JS

<script type="text/javascript" src="http://www.ynlongtou.com/m/js/mobile.js"></script>

第七种：（与第五种一致，不同的只是在于/m/后边有无index.asp文件，效果一样）

<meta http-equiv="mobile-agent" content="format=xhtml;url=/m/">

<script type="text/javascript">if(window.location.toString().indexOf('pref=padindex') != -1){}else{if(/AppleWebKit.*Mobile/i.test(navigator.userAgent) || 

(/MIDP|SymbianOS|NOKIA|SAMSUNG|LG|NEC|TCL|Alcatel|BIRD|DBTEL|Dopod|PHILIPS|HAIER|LENOVO|MOT-|Nokia|SonyEricsson|SIE-|Amoi|ZTE/.test(navigator.userAgent))){if

(window.location.href.indexOf("?mobile")<0){try{if(/Android|Windows Phone|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent)){window.location.href="/m/";}

else if(/iPad/i.test(navigator.userAgent)){}else{}}catch(e){}}}}</script>

第八种：

<link rel="alternate" type="application/vnd.wap.xhtml+xml" media="handheld" href="http://www.ynlongtou.com/m"/>

<script src="http://www.ynlongtou.com/js-bak/uaredirect.js?v=5.0" type="text/javascript"></script>

<script type="text/javascript">KZ.redirect("http://www.ynlongtou.com/m");</script>

第九种：使用腾讯js来判断客户端是否为手机

<!DOCTYPE html>

<html>

<head>

<meta content="text/html; charset=gb2312" http-equiv="Content-Type">

<meta http-equiv="X-UA-Compatible" content="IE=edge">

<title>网站首页</title>

<script type="text/javascript">

if(window.location.toString().indexOf('pref=padindex') != -1){

<br>}else{

   if(/AppleWebKit.*Mobile/i.test(navigator.userAgent) <br>     || (/MIDP|SymbianOS|NOKIA|SAMSUNG|LG|NEC|TCL|Alcatel|BIRD|DBTEL|Dopod|PHILIPS|HAIER|LENOVO|MOT-|Nokia|SonyEricsson|SIE-|Amoi|ZTE/.test(navigator.userAgent))){ 

      if(window.location.href.indexOf("?mobile")<0){

        try{

            if(/Android|Windows Phone|webOS|iPhone|iPod|BlackBerry/i.test(navigator.userAgent)){

                window.location.href="http://xw.qq.com/index.htm";

            }else if(/iPad/i.test(navigator.userAgent)){

                                window.location.href="http://www.qq.com/pad/"

            }else{

                window.location.href="http://xw.qq.com/simple/s/index/"

            }

        }catch(e){}

    }

    }

}

</script>