python的type 和object

class Student():    passs = Student()s.name = 'Mike'def set_age(self,age):    self.age = agefrom types import MethodTypes.set_age = MethodType(set_age,s)s.set_age(25)print(s.name)print(s.age)s2 = Student()s2.set_age  = MethodType(set_age,s2)s2.set_age(23)print(s2.age)print(object.__bases__)