设计模式(生成器)/属性错误

Question

我想使用构建器和原型模式创建简单的应用程序来构建不同的房子。

(1( 修改程序后，我将名称self._builder.name()属性添加到create_house方法中，该方法为我们设置了房子的名称。但是，意外地得到一个错误：AttributeError: 'House1' object has no attribute 'name'。我不知道为什么会发生这种情况，因为我认为我已经正确地定义了一切。

class Director():
def __init__(self, builder):
self._builder = builder
def create_house(self):
self._builder.name()
self._builder.create_new_house()
self._builder.add_basement()
self._builder.add_rooms()
self._builder.add_roof()
def get_house(self):
return self._builder.house

class Builder():
def __init__(self):
self.house = None
def create_new_house(self):
self.house = House()

class House1(Builder):
def add_name(self):
self.house.name = 'house1'
def add_basement(self):
self.house.basement = 'with basement'
def add_roof(self):
self.house.roof = 'wood roof'
def add_rooms(self):
self.house.rooms = 3

class House2(Builder):
def add_name(self):
self.house.name = 'house2'
def add_basement(self):
self.house.basement = 'no basement'
def add_roof(self):
self.house.roof = 'brick roof'
def add_rooms(self):
self.house.rooms = 5
class House():
def __init__(self):
self.name = None
self.basement = None
self.roof = None
self.rooms = None
def __str__(self):
return 'Building: {} {}, {}, and {} room'.format(self.name, self.basement,
self.roof, self.rooms)

builder = WoodHouse()
director = Director(builder)
director.create_house()
house = director.get_house()
print(house)

(2(顺便说一句，我会问我是否可以改进(写得更少(调用"；建筑物；房子。我指的是这个代码，例如，如果我创建了3个这样的房子，我必须重复它，然而，这是非常不可读和不方便的。

builder = WoodHouse()
director = Director(builder)
director.create_house()
house = director.get_house()
print(house)

Answer 1

只使用for循环。

for builder in [WoodHouse(), BrickHouse()]:
director = Director(builder)
director.create_house()
house = director.get_house()
print(house)