python 类和对象

#python3.7
class   People(object):
    def __init__(self,name,age,sex):
        self.name=name
        self.age=age
        self.sex=sex
        self.xuesheng=[]
    def xue(self,stu_obj):
        self.xuesheng.append(stu_obj)

class   Student(People):
    def __init__(self,name,age,sex,Stu_id,grade,charge):
        super(Student,self).__init__(name,age,sex)
        self.Stu_id=Stu_id
        self.grade=grade
        self.charge=charge

    def info(self):
        print('''
                name:%s
                age:%d
                sex:%s
                Stu_id:%d
                charge:%s   
                ''' % (self.name, self.age, self.sex, self.Stu_id, self.charge))

class   Women(Student):
    def __Info(self):
        print('''
                name:%s
                age:%d
                sex:%s
                Stu_id:%d
                charge:%s
              ''' % (self.name,self.age,self.sex,self.Stu_id,self.charge))
    #静态方法
    @staticmethod
    def Grade():
        print('They are new students')


class  Man(Student):
    charge=6000
    @classmethod
    def Charge(self):
        print('All men like playing %s' % self.charge )


    #属性方法
    @property
    def Age(self):
            print('%s is %d years old' % (self.name, self.age))
    @Age.setter
    def Age(self,a):
        print('%s is %d years old' % (self.name,a))
s1=Women('小丹',30,'female',123455,2000,5000)
s2=Student('小花',30,'female',123455,2000,5000)
s3=Man('小明',20,'male',123456,2018,4500)
s1.xue(s2)
# print(People.xue)


print('---------私有方法------')
s1._Women__Info()
print('--------普通方法,多态------------')
s3.info()
print('-----------类方法-------')
s3.Charge()
print('----------静态方法------')
Women.Grade()
print('----------属性方法------')
s3.Age
s3.Age=15
s2.info()
运行结果

---------私有方法------

                name:小丹
                age:30
                sex:female
                Stu_id:123455
                charge:5000
              
--------普通方法,多态------------

                name:小明
                age:20
                sex:male
                Stu_id:123456
                charge:4500   
                
-----------类方法-------
All men like playing 6000
----------静态方法------
They are new students
----------属性方法------
小明 is 20 years old
小明 is 15 years old

                name:小花
                age:30
                sex:female
                Stu_id:123455
                charge:5000   
                

Process finished with exit code 0