工厂方法模式

#!/usr/bin/env python
# -*- coding: utf8 -*-
# __Author: "Skiler Hao"
# date: 2017/6/2 15:45
from abc import ABCMeta, abstractmethod


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


class AliPay(Payment):
    def __init__(self,enabled_yue=False):
        self.enabled_yue = enabled_yue

    def pay(self, money):
        if self.enabled_yue:
            print("支付宝余额支付%s元" % money)
        else:
            print("支付宝支付%s元" % money)


class ApplePay(Payment):
    def pay(self, money):
        print("苹果支付支付%s元" % money)


class WechatPay(Payment):
    def pay(self, money):
        print("微信支付支付%s元" % money)


class PaymentFactory(metaclass=ABCMeta):
    @abstractmethod
    def create_payment(self):
        pass


class AlipayFactory(PaymentFactory):
    def create_payment(self):
        return AliPay()


class AppleFactory(PaymentFactory):
    def create_payment(self):
        return ApplePay()


class WechatFactory(PaymentFactory):
    def create_payment(self):
        return WechatPay()
f = AlipayFactory()
p = f.create_payment()
p.pay(100)