BOOL res1 = [(id)[NSObject class]isKindOfClass:[NSObject class]];//1
BOOL res2 = [(id)[NSObject class]isMemberOfClass:[NSObject class]];//0
BOOL res3 = [(id)[LGPerson class]isKindOfClass:[LGPerson class]];//0
BOOL res4 = [(id)[LGPerson class]isMemberOfClass:[LGPerson class]];//0
使用runtime解释为什么?
