模板方法模式

class Beverage(object):
    """description of class"""
    def makeBeverage(self):
        self.boilWater()
        self.brew()
        self.pourInCup()
        self.addCondiments()

    def boilWater(self):
        print ‘boil water‘
    def brew(self):
        print ‘brew‘
    def pourInCup(self):
        print ‘pour into cup‘
    def addCondiments(self):
        print ‘add condiments‘

class Coffee(Beverage):
    def brew(self):
        print ‘coffee‘
    def addCondiments(self):
        print ‘Adding Sugar and Milk...‘

class Tea(Beverage):
    def brew(self):
        print "tea"
    def addCondiments(self):
        print ‘Adding Lemon...‘


if ‘__main__‘==__name__:
    coffee = Coffee()
    coffee.makeBeverage()

    tea = Tea()
    tea.makeBeverage()