嵌套(组合)

1.普通嵌套

class province(object):   # 省份
    def __init__(self,address):
        self.address = address

class park(object):   # 公园
    def __init__(self,name,start,end,address=None):
        self.name=name
        self.start=start
        self.end=end
        self.address = address

class people(object):   # 人数
    def __init__(self,number,didian=None):
        self.number = number
        self.didian = didian



p1 = province("香港")
p2 = province("北京")
p3 = province("深圳")

pname = park("迪士尼","7:00","19:00",p1)
pname2 = park("天安门","5:00","19:00",p2)
pname3 = park("世界之窗","9:00","18:00",p3)

num1 = people(1200,pname)
num2 = people(1500,pname2)
num3 = people(800,pname3)

print(num1.didian.address.address)  # 可查看num1的所在省份

2.主动调用其他类的成员

class foo:
    def per(self):
        print("5个功能")

class foo1(foo):
    def per(self):
        print("3个功能")
        foo.per(self)  # 自己传入self

obj = foo1()
obj.per()
<<<
3个功能
5个功能

# super().实例方法 直接调用，按照继承顺序找下一个
class foo(object):
    def per(self):
        print("5个功能")

class foo1(foo):
    def per(self):
        print("3个功能")
        super().per()

obj = foo1()
obj.per()
<<<
3个功能
5个功能

 

来源：https://www.cnblogs.com/whileke/p/11395553.html