#?Enter?a?code
class?Person(object):
????def?__init__(self,?name,?gender):
????????self.name?=?name
????????self.gender?=?gender
????def?who(self):
????????return?'I?am?a?Person,?my?name?is?%s'?%?self.name

class?Student(Person):
????def?__init__(self,?name,?gender,?score):
????????super(Student,?self).__init__(name,?gender)
????????self.score?=?score
????def?who(self):
????????return?'I?am?a?Student,?my?score?is?%s'?%?self.score

class?Teacher(Person):
????def?__init__(self,?name,?gender,?course):
????????super(Teacher,?self).__init__(name,?gender)
????????self.course?=?course
????def?who(self):
????????return?'I?am?a?Teacher,teching?%s'%self.course
????????
class?SkillMixin(object):
????def?__init__(self):
????????pass
????
????def?get_skill(self):
????????print('I?hava?a?skill')
????????
class?BasketballSkillMixin(SkillMixin):
????def?__init__(self):
????????super(BasketballSkillMixin,self).__init__()
????????self.skill='basketball'
????
????def?get_skill(self):
????????print('I?hava?a?%s?skill'%self.skill)

class?FootballSkillMixin(SkillMixin):
????def?__init__(self):
????????super(FootballSkillMixin,self).__init__()
????????self.skill='football'
????????
????def?get_skill(self):
????????print('I?hava?a?%s?skill'%self.skill)

class?MyBasketStudent(BasketballSkillMixin,Student):
????def?__init__(self,name,gender,score):
????????Student.__init__(self,name,gender,score)
????????BasketballSkillMixin.__init__(self)
????????
class?MyFootballTeacher(FootballSkillMixin,Teacher):
????def?__init__(self,name,gender,course):
????????Teacher.__init__(self,name,gender,course)
????????FootballSkillMixin.__init__(self)
????
a=MyBasketStudent('xiaoming','man',98)
print(a.who())
print(a.get_skill())
#?b=MyFootballTeacher('lixing','man','physical')
#?print(b.who())
#?print(b.get_skill())

疑問：為啥最后一行多打印了一個None?