IOS计算两点之间的距离

 //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);