#import <AddressBook/AddressBook.h> #import <AddressBookUI/AddressBookUI.h> 

//get all people info from the address book ABAddressBookRef addressBook = ABAddressBookCreate(); CFArrayRef people = ABAddressBookCopyArrayOfAllPeople(addressBook);//這是個數組的引用 for(int i = 0; i<CFArrayGetCount(people); i++){   //parse each person of addressbook   ABRecordRef record=CFArrayGetValueAtIndex(people, i);//取出一條記錄   //以下的屬性都是唯一的，即一個人只有一個FirstName，一個Organization。。。   CFStringRef firstName = ABRecordCopyValue(record,kABPersonFirstNameProperty);   CFStringRef lastName = ABRecordCopyValue(record,kABPersonLastNameProperty);   CFStringRef company = ABRecordCopyValue(record,kABPersonOrganizationProperty);   CFStringRef department = ABRecordCopyValue(record,kABPersonDepartmentProperty);   CFStringRef job = ABRecordCopyValue(record,kABPersonJobTitleProperty);   //"CFStringRef"這個類型也是個引用，可以轉成NSString*   NSlog((NSString *)firstName);   //......   //所有這些應用都是要釋放的，手冊里是說“you are responsible to release it"   (firstName==NULL)?:CFRelease(firstName);   (lastName==NULL)?:CFRelease(lastName);   (company==NULL)?:CFRelease(company);   (department==NULL)?:CFRelease(department);   (job==NULL)?:CFRelease(job);   //.......   //有些屬性不是唯一的，比如一個人有多個電話：手機，主電話，傳真。。。   ABMutableMultiValueRef multiPhone = ABMultiValueCreateMutable(kABMultiStringPropertyType);   //所有ABMutableMultiValueRef這樣的引用的東西都是這樣一個元組（id，label，value）   multiPhone = ABRecordCopyValue(record, kABPersonPhoneProperty);   for (CFIndex i = 0; i < ABMultiValueGetCount(multiPhone); i++) {     CFStringRef labelRef = ABMultiValueCopyLabelAtIndex(multiPhone, i);     CFStringRef numberRef = ABMultiValueCopyValueAtIndex(multiPhone, i);     //可以通過元組的label來判定這個電話是哪種電話，比如下面就包括：主電話，手機，工作傳真     if([(NSString *)labelRef isEqualToString:(NSString *) kABPersonPhoneMainLabel]){       person._mainPhone = (NSString *)numberRef;     }else if([(NSString *)labelRef isEqualToString:(NSString *) kABPersonPhoneMobileLabel]){       person._cellPhone = (NSString *)numberRef;     }else if([(NSString *)labelRef compare:(NSString *) kABPersonPhoneWorkFAXLabel]==NSOrderedSame){       person._fax = (NSString *)numberRef;     }     CFRelease(labelRef);     CFRelease(numberRef);   }   CFRelease(multiPhone); } //釋放資源 //其他還有url，email，地址等等屬性都是ABMutableMultiValueRef多值類型的，可以采用循環來遍歷