from abc import ABCMeta, abstractmethod

""" 将一个类的接口转换成客户希望的另一个接口 使原本由于接口不兼容而不能一起工作的那些类可以一起工作 """

抽象类

class Payment(metaclass=ABCMeta): @abstractmethod def pay(self, money): pass

class Alipay(Payment): def pay(self, money): print(f'支付宝付款{money}元')

class WechatPay(Payment): def pay(self, money): print(f'微信付款{money}元')

class BankPay: def cost(self, money): print(f'银联支付{money}')

class ApplePay: def cost(self, money): print(f'苹果支付{money}元')

类 适配器类

class NewBankPay(Payment, BankPay): def pay(self, money): self.cost(money)

p = NewBankPay() p.pay(100)

对象 适配器

class PaymentAdapter(Payment): def init(self, payment): self.payment = payment

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

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