CoreData 사용하기

나중에 수정하고 일단 링크 붙여 넣음..

#1

http://www.raywenderlich.com/934/core-data-tutorial-for-ios-getting-started

#2

http://www.raywenderlich.com/12170/core-data-tutorial-how-to-preloadimport-existing-data-updated

#3

http://www.raywenderlich.com/999/core-data-tutorial-for-ios-how-to-use-nsfetchedresultscontroller