我在实现ABPeoplePickerNavigationControllerDelegate时遇到了这个奇怪的问题。因此标识符有时在委托(delegate)方法中错误地获取了它的值-(BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController*)peoplePickershouldContinueAfterSelectingPerson:(ABRecordRef)personproperty:(ABPropertyID)propertyidentifier:(ABMultiValueIdentifi