如果您已经在区域，因为状态未更改，您不会收到通知。

If you are already in the region, you will not get notified that you entered a region, because the state hasn't changed.

在iOS 7及更高版本上，您可以使用-[CLLocationManager requestStateForRegion：] 在开始监视区域时请求区域的当前状态。在您的CLLocationManagerDelegate上-（void）locationManager：（CLLocationManager *）manager didDetermineState：（CLRegionState）state forRegion：（CLRegion *）region 。

On iOS 7 and later, you can use -[CLLocationManager requestStateForRegion:] to request the current state for a region as you start to monitor it. -(void)locationManager:(CLLocationManager *)manager didDetermineState:(CLRegionState)state forRegion:(CLRegion *)region on your CLLocationManagerDelegate.

如果需要支持iOS 6，则可以通过-[CLRegion containsCoordinate：] 来检查区域是否包含设备的当前坐标，从而手动完成此操作。

If you need to support iOS 6, you can do this manually by checking if the region contains the device's current coordinate, via -[CLRegion containsCoordinate:]