谷歌地图错误 - 纬度/经度无效？

Question

我有以下代码：

<script src="https://maps.googleapis.com/maps/api/js?sensor=false"></script>

<div class="row">
    <div class="col-md-6" id="googleMap" style="height:500px;"></div>
</div>

<script>
    function initialize() {
        var mapProp = {
            center: new google.maps.LatLng(44.6656, -83.5753),
            zoom: 10,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };

        var map = new google.maps.Map(document.getElementById("googleMap")
          ,mapProp);

        var marker = new google.maps.Marker({
            position: mapProp,
        });

        marker.setMap(map);
    }

    google.maps.event.addDomListener(window, 'load', initialize);
</script>

地图显示正常，但我无法添加标记。我收到以下错误：

setPosition: not a LatLng or LatLngLiteral: in property lat: not a number

我看不出纬度和经度是如何无效的，因为生成的地图显示了正确的位置。但没有标记。

Answer 1

标记的position 属性应该是LatLng 类型：

<script src="https://maps.googleapis.com/maps/api/js?sensor=false"></script>

<div class="row">
    <div class="col-md-6" id="googleMap" style="height:500px;"></div>
</div>

<script>
    function initialize() {

        var cord = new google.maps.LatLng(41.6656, -83.5753);

        var mapProp = {
            center: cord,
            zoom: 10,
            mapTypeId: google.maps.MapTypeId.ROADMAP
        };

        var map = new google.maps.Map(document.getElementById("googleMap")
          ,mapProp);

        var marker = new google.maps.Marker({
            position: cord,
        });

        marker.setMap(map);
    }

    google.maps.event.addDomListener(window, 'load', initialize);
</script>

http://jsfiddle.net/5am3V/