继承

子代能继承父代所有属性，子代定义的属性与父代相同则会覆盖掉父代属性

class base1:
    def __init__(self): # 构造函数 _init_(self,parama....)第一个参数默认没有
        self.name = "jerry"
    def love(self):
        print("%s\n" %self.name)
class base2(base1):
    pass
class base3(base1): #可继承多个父类
    def __init__(self):
        super().__init__() #继承父类同类型属性，防止被子代覆盖
        self.words = "like tom" #添加自身属性
    def language(self):
        print(self.name + " " + self.words)
base = base3()
base.language()

修改部分

class base1:
    def __init__(self,name):
        self.name = name
    def love(self):
        print("%s\n" %self.name)
class base2(base1):
    pass
class base3(base1):
    def __init__(self,name):
        super().__init__(name)
        self.words = "like tom"
    def language(self):
        print(self.name + " " + self.words)
name = str(input("请输入\n"))
p = base3(name)
p.language()

拾遗

class Turtle:
    def __init__(self,x):
        self.num = x
class Fish:
    def __init__(self,x):
        self.num = x
class pool:
    def __init__(self,x,y):
        self.turtle = Turtle(x) #类的实例化
        self.fish = Fish(y)
    def print_num(self):
        print("有%d只乌龟，%d只鱼\n" %(self.turtle.num,self.fish.num))
p = pool(40,400)
p.print_num()