self.currentLoaction = [[CLLocationManager alloc] init];
[self.currentLoaction setDelegate:self];
self.currentLoaction.desiredAccuracy = kCLLocationAccuracyBest;//精度设定
//_currentLoaction.desiredAccuracy=kCLLocationAccuracyNearestTenMeters;
[ self.currentLoaction startUpdatingLocation];
-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations{
NSLog(@"sdg");
}代理方法不会进去