1 class Role:
 2     def __init__(self, name, hp, ad):
 3         self.name = name
 4         self.hp = hp
 5         self.ad = ad
 6     def attack(self):
 7         pass
 8     def wea(self,w):
 9         self.w=w
10
11 class Weapon:
12     def __init__(self,name,ad):
13         self.name = name
14         self.ad = ad
15     def da(self,r1):
16         print("{}得到了{}".format(r1.name,self.name))
17 r1=Role("亚瑟",1000,30)
18 w1=Weapon("大宝剑",50)
19 r1.wea(w1)
20 r1.w.da(r1)

 1 class Walkanimal:
 2     def __init__(self,name):
 3         self.name=name
 4     def walk(self):
 5         print("行走")
 6 class Cat(Walkanimal):   #Walkanimal的派生类
 7     def catch_mouse(self):  #派生方法
 8         print("抓老鼠")
 9 a=Cat("猫")
10 print(a.name)
11 a.walk()

 1 class A:
 2     def func(self):
 3         print("in A")
 4 class B(A):
 5     def func(self,):
 6         print("in B")
 7         A.func(self)
 8 # b1=B()
 9 # b1.func()  # in B  \  in A
10
11
12 class A:
13     def func(self):
14         print("in A")
15 class B(A):
16     def func(self,):
17         print("in B")
18         super().func()
19 b1=B()
20 b1.func()  # in B  \  in A
21 当用super时不用传入self

class Foo:def __init__(self):self.func()def func(self):print('in Foo')class Son(Foo):def func(self):print("in Son")
s1=Son()     #in Sonclass Foo:def __init__(self):self.func()def func(self):print('in Foo')class Son(Foo):pass
s1=Son()    #in Foo

1 class Foo:
2     country="china"
3     def func(self):
4         print(self.country)
5 class Son(Foo):
6     country="english"
7 s=Son()
8 s.func()    #english

 1 class A:
 2     def func(self):
 3         print("A")
 4 class B(A):
 5     def func(self):
 6         super().func()
 7         print("B")
 8 class C(A):
 9     def func(self):
10         super().func()
11         print("C")
12 class D(B,C):
13     def func(self):
14         super().func()
15         print("D")
16 d=D()
17 d.func()   #ACBD

1 class Animal:
2     pass
3 class Dog(Animal):
4     pass
5 class Cat(Animal):
6     pass

 1 class Goods:
 2     __count=0.8
 3     def __init__(self,price):
 4         self.__price=price
 5     def price(self):
 6         return self.__price
 7 g=Goods(10)
 8 # print(g.__count)   #报错，类的私有变量不能在外部使用
 9 # print(g.__price)     #报错
10 print(g.price())      #10

1 class Animal:
2     __name="animal"
3 class Dog(Animal):
4     pass
5 d=Dog()
6 print(d.__name)   #报错

 1 class Goods:
 2     def __init__(self,name,price):
 3         self.name=name
 4         self.__price=price
 5     @property
 6     def price(self):
 7         return self.__price
 8     @price.setter
 9     def price(self,new_price):
10         self.__price=new_price
11         return self.__price
12 a=Goods('apple',10)
13 print(a.price)   #10
14 a.price=20
15 print(a.price)   #20