class Ball:

    #def setname(self,name):

    def __init__(self,name):

        self.name = name

    def __kick(self): #__:私有

        print('我叫%s,谁踢我'%self.name)

>>> tt = Ball()

>>> tt.kick('西瓜')

Traceback (most recent call last):

  File "<pyshell#1>", line 1, in <module>

    tt.kick('西瓜')

TypeError: kick() takes 1 positional argument but 2 were given

>>> tt.setname('nihao')

>>> tt.kick

<bound method Ball.kick of <__main__.Ball object at 0x000002146E286898>>

>>> tt.kick()

我叫nihao,谁踢我

>>> tt = Ball('nihaoya')

>>> tt._Ball__kick

<bound method Ball.__kick of <__main__.Ball object at 0x000001B6B2C36898>>

>>> tt._Ball__kick()

我叫nihaoya,谁踢我

class Father1:

    def hello(self):

        print('你好,这是在运行父程序')

class Chilrd(Father1):

    pass

import random as r

class Fish:

    def  __init__(self):

        self.x = r.randint(0,10)

        self.y = r.randint(0,10)

    def move(self):

        self.x -= 1

        print('现在的位置是:',(self.x,self.y))

class Goldfish(Fish):

    pass

class Shtingfish(Fish):

    pass

class Shark(Fish):

    def __init__(self):     #重写了__init__(self)方法,新的__init__方法里没有初始化鲨鱼的x,y坐标

        super().__init__()  #super__init__()方法,先调用了Fish.__init__()方法

        self.hungry = True

    def eat(self):

        if self.hungry:

            print('好香,在吃会')

            self.hungry = False

        else:

            print('不能吃了')

>>> sharkfish = Shark()

>>> sharkfish.move()     ##重写了__init__(self)方法,新的__init__方法里没有初始化鲨鱼的x,y坐标

Traceback (most recent call last):

  File "<pyshell#24>", line 1, in <module>

    sharkfish.move()

  File "C:\Users\tpuser\Desktop\python_20180328\复习第二个.py", line 42, in move

    self.x -= 1

AttributeError: 'Shark' object has no attribute 'x'

>>> sharkfish.eat()

好香,在吃会

>>> sharkfish.eat()

#super.__init__()   :super__init__()方法,先调用了Fish.__init__()方法

>>> sharkfish = Shark()

>>> sharkfish.eat()

好香,在吃会

>>> sharkfish.move()

现在的位置是: (8, 9)

#多重继承

class Base1:

    def foo1(self):

        print('1')

class Base2:

    def foo2(self):

        print('2')

class Bss(Base1,Base2):

    pass

>>> bb= Bss()

>>> bb.foo1()

1

>>> bb.foo2()

2

#组合

class Lala:

    def __init__(self,x):   #self 表示类class本身:  Lala

        self.num= x

class Eilinge:

    def __init__(self,x,):

        self.num = x

class Family(Lala,Eilinge):

    def __init__(self,x,y):

        self.lala= Lala(x)

        self.eilinge = Eilinge(y)

    def love(self):

        #print(type(self.lala.num))

        print(self.lala.num+' i love you'+self.eilinge.num)

class BB:

    def print1():

        print('hhaha')

>>> BB.print1()

hhaha

>>> cc= BB()

>>> cc.print1()

Traceback (most recent call last):

  File "<pyshell#69>", line 1, in <module>

    cc.print1()

TypeError: print1() takes 0 positional arguments but 1 was given

Family.__dict__

mappingproxy({'__module__': '__main__', '__init__': <function Family.__init__ at 0x0000019EF2E528C8>,

              'love': <function Family.love at 0x0000019EF2E52950>, '__doc__': None})