区分Android 和IOS

<script type="text/javascript">
window.onload = function (){
var _val  = navigator.platform ;
var _appVerson = navigator.appVersion;
               
               //alert("appVesion :" + _appVerson)
               
 if(_val.indexOf("iPad") != -1 || _val.indexOf("iPhone") != -1  ){
    //iphone
    
  }else if(_appVerson.match(/linux/i)){
               //X11是UC浏览器的平台
  	//android
               
   }
               
}
               
</script>