非ARC下,编译报错
objc_unretainedPointer(self) --> (__bridge void *)self
(NSMutableDictionary *) objc_unretainedObject(object) --> (__bridge NSMutableDictionary *)object
objc_retainedObject(object)-->(__bridge id)object
非ARC下,编译报错
objc_unretainedPointer(self) --> (__bridge void *)self
(NSMutableDictionary *) objc_unretainedObject(object) --> (__bridge NSMutableDictionary *)object
objc_retainedObject(object)-->(__bridge id)object