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<!DOCTYPE HTML>
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<title>外观模式 · GitBook</title>
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Introduction
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创建型设计模式
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抽象工厂模式
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装饰器模式
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Null 模式
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<a href="." >外观模式</a>
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<h1 id="python设计模式之外观模式"><a href="http://dongweiming.github.io/python-facade.html"Permalink to python设计模式之外观模式"" target="_blank">python设计模式之外观模式</a></h1><h2 id="外观模式">外观模式</h2><p>Facade模式其实就是把一些工作接口，根据一定的组合提供一些接口，比如你有1,2,3,4四种功能，你提供的接口一调用了123,接口二调用了124,接口三调用了34,这样的方式</p><h2 id="python的例子">python的例子</h2><pre><code>class Test1(object):
def run(self):
print "###### In Test 1 ######"
class Test2(object):
def run(self):
print "###### In Test 2 ######"
class Test3(object):
def run(self):
print "###### In Test 3 ######"
class Runner(object):
def __init__(self):
self.t1 = Test1()
self.t2 = Test2()
self.t3 = Test3()
def build_up1(self):
[i.run() for i in [self.t1, self.t3]]
def build_up2(self):
[i.run() for i in [self.t3, self.t2]]
def build_up3(self):
[i.run() for i in [self.t3, self.t2, self.t1]]
if __name__ == '__main__':
run = Runner()
# 不同的组合
run.build_up1()
run.build_up2()
run.build_up3()</code></pre>
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