#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