如何使用Core Location获取当前的位置和GPS的坐标呢？

1. - (void)locationManager:(CLLocationManager *)manager
   
2.         didUpdateToLocation:(CLLocation *)newLocation
   
3.                    fromLocation:(CLLocation *)oldLocation
   
4. {
   
5.     if (!gaocoder) {
   
6.                 gaocoder = [[MKReverseGeocoder alloc]initWithCoordinate:newLocation.coordinate];
   
7.                 gaocoder.delegate =self;
   
8.                 [gaocoder start];
   
9.         }
   
10.         
    
11.     showmapview.region=MKCoordinateRegionMake(self.bestloaction.coordinate, MKCoordinateSpanMake(0.005f, 0.005f));
    
12.         showmapview.showsUserLocation=YES;
    
13.         showmapview.zoomEnabled=NO;
    
14.         
    
15.         if (!self.bestloaction)self.bestloaction=newLocation;
    
16.         else if (newLocation.horizontalAccuracy<bestloaction.horizontalAccuracy)
    
17.                 self.bestloaction=newLocation;
    
18. 
    
19.         latitudeString= [[NSString alloc] initWithFormat:@"%g",newLocation.coordinate.latitude];
    
20.         
    
21.         
    
22.         NSLog(@"string one:%@",latitudeString);
    
23.         [latitudeString release];
    
24.         longitudeString = [[NSString alloc]initWithFormat:@"%g",newLocation.coordinate.longitude];
    
25.         NSLog(@"string two:%@",longitudeString);
    
26.         [longitudeString release];
    
27.     
    
28.     
    
29.     
    
30.     }