问无需使用google地图api即可找到当前位置的方法

EN

<script type="text/javascript">
function showLocation(position) {
  var latitude = position.coords.latitude;
  var longitude = position.coords.longitude;
  alert("Latitude : " + latitude + " Longitude: " + longitude);
}

function errorHandler(err) {
  if(err.code == 1) {
    alert("Error: Access is denied!");
  }else if( err.code == 2) {
    alert("Error: Position is unavailable!");
  }
}
function getLocation(){

   if(navigator.geolocation){
      // timeout at 60000 milliseconds (60 seconds)
      var options = {timeout:60000};
      navigator.geolocation.getCurrentPosition(showLocation, 
                                               errorHandler,
                                               options);
   }else{
      alert("Sorry, browser does not support geolocation!");
   }
}
</script>

   <form>
     <input type="button" onclick="getLocation();" value="Get Location"/>
   </form>