注意代码要放在首页里

//方法一 
   var is_mobi = navigator.userAgent.toLowerCase().match(/(ipod|iphone|android|coolpad|mmp|smartphone|midp|wap|xoom|symbian|j2me|blackberry|wince)/i) != null;  
if (is_mobi) {  
    window.location.href = "/my";  
}  

//方法二

    // 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("/my");/*指定跳转地址*/