利用百度地图api构建地图并实现根据浏览器定位功能

var map =new BMap.Map('container');
var point = new BMap.Point(116.331398,39.897445);
map.centerAndZoom(point,12);
var geolocation = new BMap.Geolocation();
geolocation.getCurrentPosition(function(r){
    if(this.getStatus() == BMAP_STATUS_SUCCESS){
        var mk = new BMap.Marker(r.point);
        map.addOverlay(mk);
        map.panTo(r.point);
        alert('您的位置：'+r.point.lng+','+r.point.lat);
    }
    else {
        alert('failed'+this.getStatus());
    }
});