JS前端开发判断是否是手机端并跳转操作（小结）

<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';  if(bIsIpad || bIsIphone || bIsMidp || bIsUc7 || bIsUc || bIsCE || bIsWM || bIsAndroid ){  window.location.href = '跳转的移动端网址';  } })(); </script><script type="text/javascript"> <!--   //平台、设备和操作系统   var system = {    win: false,    mac: false,    xll: false,    ipad:false   };   //检测平台   var p = navigator.platform;   system.win = p.indexOf("Win") == 0;   system.mac = p.indexOf("Mac") == 0;   system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);   system.ipad = (navigator.userAgent.match(/iPad/i) != null)?true:false;   //跳转语句，如果是手机访问就自动跳转到wap.baidu.com页面   if (system.win || system.mac || system.xll||system.ipad) {   } else {    window.location.href = "http://www.jdpatro.com/3g/";   } --> </script>

<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="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><script type="text/javascript"> <!--   //平台、设备和操作系统   var system = {    win: false,    mac: false,    xll: false,    ipad:false   };   //检测平台   var p = navigator.platform;   system.win = p.indexOf("Win") == 0;   system.mac = p.indexOf("Mac") == 0;   system.x11 = (p == "X11") || (p.indexOf("Linux") == 0);   system.ipad = (navigator.userAgent.match(/iPad/i) != null)?true:false;   //跳转语句，如果是手机访问就自动跳转到wap.baidu.com页面   if (system.win || system.mac || system.xll||system.ipad) {   } else {    window.location.href = "http://www.jdpatro.com/3g/";   } --> </script>

<script type="text/javascript">  var bForcepc = fGetQuery("dv") == "pc";  function fBrowserRedirect(){   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";   if(bIsIpad){    var sUrl = location.href;     if(!bForcepc){     window.location.href = "http://ipad.mail.163.com/";    }   }   if(bIsIphoneOs || bIsAndroid){    var sUrl = location.href;     if(!bForcepc){     window.location.href = "http://smart.mail.163.com/";    }   }   if(bIsMidp||bIsUc7||bIsUc||bIsCE||bIsWM){    var sUrl = location.href;     if(!bForcepc){     window.location.href = "http://m.mail.163.com/";    }   }  }  function fGetQuery(name){//获取参数值   var sUrl = window.location.search.substr(1);   var r = sUrl.match(new RegExp("(^|&)" + name + "=([^&]*)(&|$)"));   return (r == null ? null : (r[2]));  }  function fShowVerBlock(){    if(bForcepc){    document.getElementByIdx_x("dv_block").style.display = "block";   }   else{    document.getElementByIdx_x("ad_block").style.display = "block";   }  }  fBrowserRedirect();  </script>