##A demo for iBeacon
###Start a BeaconMonitor
1、 创建一个BeaconRegion，作为搜索的Region对象。其中UUID为Beacon基站的唯一标识。
NSUUID* myUUID = [[NSUUID alloc] initWithUUIDString:@"E621E1F8-C36C-495A-93FC-0C247A3E6E5D"];
self.targetBeaconRegion = [[CLBeaconRegion alloc] initWithProximityUUID:myUUID identifier:@"My Beacon Demo 20131221"];
2、 创建一个CLLocationManager对象
self.locationManager = [[CLLocationManager alloc] init];
self.locationManager.delegate = self;
3、 开始搜索Beacon基站
[self.locationManager startRangingBeaconsInRegion:self.targetBeaconRegion];
接下来可以处理一下回调函数，如：
- (void)locationManager:(CLLocationManager *)manager
didRangeBeacons:(NSArray *)beacons inRegion:(CLBeaconRegion *)region
- (void)locationManager:(CLLocationManager *)manager
didUpdateLocations:(NSArray *)locations
- (void)locationManager:(CLLocationManager *)manager
didEnterRegion:(CLRegion *)region
- (void)locationManager:(CLLocationManager *)manager
didExitRegion:(CLRegion *)region
- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status
效果图：
