结构型模式-适配器模式

类适配器模式，缺单是如果有多个类需要编写多个适配器类

from abc import ABCMeta, abstractmethod


# 目标接口
class Payment(metaclass=ABCMeta):

    @abstractmethod
    def pay(self, money):
        pass


class Alipay(Payment):
    def pay(self, money):
        print("zhifule %d" % money)


# 待适配的类
class Bankpay():
    def cost(self, monny):
        print("zhifule  %d" % monny)


# 类适配器
class PaymentAdapter(Payment, Bankpay):
    def pay(self, money):
        self.cost(money)

p = PaymentAdapter()
p.pay(100)

 

类适配器

from abc import ABCMeta, abstractmethod


# 目标接口
class Payment(metaclass=ABCMeta):

    @abstractmethod
    def pay(self, money):
        pass


class Alipay(Payment):
    def pay(self, money):
        print("alizhifule %d" % money)


# 待适配的类
class Bankpay():
    def cost(self, money):
        print("bankzhifule  %d" % money)


class Applypay():
    def cost(self, money):
        print("appzhifule %d" % money)


# 对象适配器， 将cost方法适配成pay方法
class PaymentAdapter(Payment):
    def __init__(self, payment):
        self.payment = payment

    def pay(self, money):
        self.payment.cost(money)


p = PaymentAdapter(Applypay())
p.pay(100)