Google Maps：无法更改标记图标

Question

I have created a method to find user location using Geolocation and i pass that location to my function to make a request to a web service. After data from the web service received, some marker will be added to the map. The marker was shown to the map, but apparently when i try to change the marker icon, the marker was dissapear. i've tried to put it in the same folder and the image name is correct and i've tried to open the image in my browser and it open. Here is my code, can anyone please help me?

    if(navigator.geolocation) {
    browserSupportFlag = true;
    navigator.geolocation.getCurrentPosition(function(position) {
        var lat = position.coords.latitude;
        var lon = position.coords.longitude;
        initialLocation = new google.maps.LatLng(lat,lon);
        map.setCenter(initialLocation);
        get_json(lat,lon,function(data){
            var i, marker;
            var location;
            for (i=0; i<=data.cells.length;i++) {
                location = new google.maps.LatLng(data.cells[i].lat, data.cells);
                marker = new google.maps.Marker({
                    position: location,
                    map: map,
                    icon: "../img/icon_bts.png"
                });    
            }
        });
    }, function() {
      handleNoGeolocation(browserSupportFlag);
    });
  }

Answer 1

Seems like you accidentally deleted part of your script when you added your own marker. Assuming you posted your literal code fragment (and if you didn't, you really should ), the following line

location = new google.maps.LatLng(data.cells[i].lat, data.cells);

could never work . The constructor of LatLng takes two number arguments: if data.cells[i].lat is a number, data.cells definitely isn't. I assume that line should read something like

location = new google.maps.LatLng(data.cells[i].lat, data.cells[i].lng);

If that doesn't solve your problem, just look in the browser console what the actual error is and report it as part of your question.