class Person(object):

? ? def __init__(self, name, age):

? ? ? ? self.name = name

? ? ? ? self.age = age

class Student(Person):

? ? def __init__(self, name, age, grade):

? ? ? ? super(Student, self).__init__(name, age)

? ? ? ? self.grade = grade

class Teacher(Person):

? ? def __init__(self, name, age, subject):

? ? ? ? super(Teacher,self).__init__(name,age)

? ? ? ? self.subject = subject

class Skill(object):

? ? def __init__(self,skill):

? ? ? ? self.skill = skill

class Basketball(Skill):

? ? def __init__(self,skill, level):

? ? ? ? super(Basketball, self).__init__(skill)

? ? ? ? self.level = level

class Football(Skill):

? ? def __init__(self,skill,level):

? ? ? ? super(Football, self).__init__(skill)

? ? ? ? self.level=level

class BK(Student,Basketball):

? ? def __init__(self,name,age,grade,skill,level,practise_time):

? ? ??Student.__init__(self,name, age, grade)

?#? super(BK,self).__init__(name,age,grade,skill,level)（原來是這樣寫的，外部調用不了第二父類的屬性）

? ? ? ? BK.practise_time=practise_time

class FT(Teacher,Football):

? ? def __init__(self,name,age,subject,skill,level,practise_time):

? ? ? ?Teacher.__init__(self,name,age,subject)

? ? ? ?Football.__init__(self,skill,level)

# super(FT,self).__init__(name,age,subject,skill,level)

? ? ? ? FT.practise_time = practise_time

a = BK('LiMing', 13, 13,'Basketball', 3, 6)

b = FT('LiLei', 40, 'Math', 'Football',6,20)

print(a.age)

print(b.skill)