我收到这个警告:枚举值'NSFetchedResultsChangeMove'和NSFetchedResultsChangeUpdate'未在开关中处理有什么想法吗?-(void)controller:(NSFetchedResultsController*)controllerdidChangeSection:(id)sectionInfoatIndex:(NSUInteger)sectionIndexforChangeType:(NSFetchedResultsChangeType)type{switch(type){caseNSFetchedResultsChangeInsert