问将完成处理程序中的值存储到变量中。

EN

// Do any additional setup after loading the view, typically from a nib.
    CLLocationManager *locationManager = [[CLLocationManager alloc] init];
    locationManager.distanceFilter = kCLDistanceFilterNone;
    locationManager.desiredAccuracy = kCLLocationAccuracyHundredMeters;
    [locationManager startUpdatingLocation];


    CLGeocoder *geocoder = [[CLGeocoder alloc] init] ;
    NSString *co;
    [geocoder reverseGeocodeLocation:locationManager.location
                   completionHandler:^(NSArray *placemarks, NSError *error) {
                       NSLog(@"reverseGeocodeLocation:completionHandler: Completion Handler called!");

                       if (error){
                           NSLog(@"Geocode failed with error: %@", error);
                           return;

                       }


                       CLPlacemark *placemark = [placemarks objectAtIndex:0];



                       NSLog(@"placemark.country %@",placemark.country);
                       co = placemark.country;
                       // 
                   }];

    NSLog(@"%@",co);