Automatic Reference Counting: ????????? memory ????????? XCode 4

?????????? Objective-C ??? manual reference counting ????? code ?????????? XCode 4 ??????????????????? memory ??????? ???????????????????????? style ????????? ?????????? Garbage Collector ??????????????? Ref count ! XCode ??? keyword ??????????? ???????? object ownership ?????? compilter ???????? alloc/dealloc ????????????????????????????????? compiler ???????? link ????????????? compiler ????????? inject alloc/dealloc »

?????????????? Interface builder ??????? XCode 3 ??? 4

XCode 3 Interface builder ???? app ????????????? XCode IDE ????? XCode 4 ????????????????????? ???????? Outlet ??? Action ?? XCode 3 ???? panel ???? list ?????????????????/????? ???????? wire Outlet/Action ????????? ??? object/selector (method) ?????????? ????? XCode 4 ????????????????????????? ??? couple ??? Objective-C ??????????? ?????????? Outlet/ »