嗨取NSManagedObject我有一個的NSArray(playersList)包含以下NSManagedObjects:具有特定屬性
(
"<NSManagedObject: 0x6b75980> (entity: Players; id: 0x6b749d0 <x-coredata://463316AB-BCF5-4257-AE5B-26E3AAB0DAE1/Players/p1> ; data: { \"id_player\" = 2;\n name = 7777;\n})",
"<NSManagedObject: 0x6b759e0> (entity: Players; id: 0x6b749e0 <x-coredata://463316AB-BCF5-4257-AE5B-26E3AAB0DAE1/Players/p2> ; data: { \"id_player\" = 3;\n name = \"hcp 5\";\n})",
"<NSManagedObject: 0x6b756d0> (entity: Players; id: 0x6b749c0 <x-coredata://463316AB-BCF5-4257-AE5B-26E3AAB0DAE1/Players/p3> ; data: {\"id_player\" = 4;\n name = 1;\n})"
)
我如何可以查詢返回與「id_player == 3」的對象?
NSPredicate文檔 – Rog 2011-12-30 11:44:55