简单工厂模式

#!/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:
    def create_payment(self, method):
        if method == ‘alipay‘:
            return AliPay(enabled_yue=True)
        elif method == "applepay":
            return ApplePay()
        elif method == "wechatpay":
            return WechatPay()
        else:
            raise NameError(method)


f = PaymentFactory()
p = f.create_payment(‘alipay‘)
p.pay(100)