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iphone - objective-C 中的私有(private)和公共(public)属性

那么这两个版本之间的实际区别是什么:@interfaceFoo:NSObject//Aguywalksintoabar.@property(nonatomic,copy)NSString*bar;@end//Implementationfile@interfaceFoo()@property(nonatomic,retain)NSArray*baz;@end和@interfaceFoo:NSObject//Aguywalksintoabar.@public@property(nonatomic,copy)NSString*bar;@private@property(nonatomic,