如何编辑CLLocationManager

Question

有没有办法编辑CLCircularRegion对象的monitoredRegions属性返回的NSSet中的CLLocationManager？

我想做类似的事情：

NSSet *monitoredRegionsSet = self.locationManager.monitoredRegions;
for (CLCircularRegion *region in monitoredRegionsSet)
{
    //Change radius of every region in monitoredRegionsSet
}