建造者模式
将一个复杂对象的构造与他的表示分离，使得同样的构建过程可以创建不同的表示
抽象建造者、具体建造者、指挥者、产品
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| from abc import ABCMeta, abstractmethod
class Computer:
def __init__(self):
self.monitor = None
self.cpu = None
self.keyboard = None
self.chassis = None
def __str__(self):
return f"{self.cpu},{self.monitor},{self.chassis},{self.keyboard}"
class ComputerBuilder(metaclass=ABCMeta):
@abstractmethod
def build_monitor(self):
pass
@abstractmethod
def build_cpu(self):
pass
@abstractmethod
def build_keyboard(self):
pass
@abstractmethod
def build_chassis(self):
pass
class HuaWeiComputer(ComputerBuilder):
def __init__(self):
self.computer = Computer()
def build_cpu(self):
self.computer.cpu = "I9"
def build_monitor(self):
self.computer.monitor = "京东方"
def build_chassis(self):
self.computer.chassis = "华硕"
def build_keyboard(self):
self.computer.keyboard = "联想"
class AppleComputer(ComputerBuilder):
def __init__(self):
self.computer = Computer()
def build_cpu(self):
self.computer.cpu = "M1"
def build_monitor(self):
self.computer.monitor = "三星"
def build_chassis(self):
self.computer.chassis = "自产"
def build_keyboard(self):
self.computer.keyboard = "双飞燕"
class ComputerDirector:
def build_computer(self, builder):
builder.build_cpu()
builder.build_chassis()
builder.build_monitor()
builder.build_keyboard()
return builder.computer
if __name__ == "__main__":
builder = AppleComputer()
computer_director = ComputerDirector()
print(computer_director.build_computer(builder))
print(computer_director.build_computer(HuaWeiComputer()))
|
