//广州经纬度

 CLLocationCoordinate2D guangZhouLocation;

 guangZhouLocation.latitude = 23.20;

 guangZhouLocation.longitude = 113.30;

 BMKMapPoint guangZhou = BMKMapPointForCoordinate(guangZhouLocation);

 //深圳经纬度

 CLLocationCoordinate2D shenZhenLocation;

 shenZhenLocation.latitude = 22.33;

 shenZhenLocation.longitude = 114.07;

 BMKMapPoint shenZhen = BMKMapPointForCoordinate(shenZhenLocation);

  //计算广州与深圳的距离
13 CLLocationDistance distance = BMKMetersBetweenMapPoints(guangZhou,shenZhen);

 NSLog(@"距离:%f",distance);