95. abstract

DrZhang

class Coffeemaker:
  def heatWater(self):
    print("Heating water")
  def brew(self):
    print("Adding water to grounds")
  def filterCoffee(self):
    print("Filtering coffee")
  def makeCoffee(self):   # 这里就叫做abstract，将低层次的代码整合起来，直接实现功能。
    self.heatWater()
    self.brew()
    self.filterCoffee()
make_coffee = Coffeemaker()
make_coffee.makeCoffee()