//实例对象
NSLog(@“Person实例地址:%@”,self);
//类对象
Class myClass = objc_getClass(“CFPerson”);
NSLog(@“Person类地址:%p”,myClass);
//元类对象
Class metaClass = objc_getMetaClass(“CFPerson”);
NSLog(@“Person元类地址:%p”,metaClass);
//父类对象
Class superCls = class_getSuperclass(myClass);
NSLog(@“Person父类地址:<%@:%p>”,superCls,superCls);