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声明一个返回值为NSDictionary,并且带参数的blo

[单选题]
声明一个返回值为NSDictionary,并且带参数的block正确的是
  • @property (nonatomic,strong) NSDictionary (*aBlock)(int age)
  • @property (nonatomic,strong) NSDictionary ^(*aBlock)(int age)
  • @property (nonatomic,strong) NSDictionary (^aBlock)(int age)
  • @property (nonatomic,strong) NSDictionary *(^aBlock)(int age)

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