大话设计模式（Python版）--适配器模式

最新推荐文章于 2024-06-20 20:56:22 发布

jenny_yu1025

最新推荐文章于 2024-06-20 20:56:22 发布

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分类专栏： python 设计模式文章标签：设计模式

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本文通过两个示例详细解析了适配器模式的应用：一个是通用的适配器模式实现，展示了如何将一个类的接口转换为客户期望的另一个接口；另一个是篮球场上的角色适配案例，介绍了如何使用适配器解决不同语言背景球员间的沟通问题。

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适配器模式--v1

#!/usr/bin/env python
from abc import abstractmethod
class Target:
    @abstractmethod
    def Request(self):
        print("normal request")

class Adaptee:
    def SpecificRequest(self):
        print("special request")

class Adapter(Target):
    def __init__(self):
        self.__adaptee = Adaptee()
    def Request(self):
        self.__adaptee.SpecificRequest()

def main():
    target = Adapter()
    target.Request()

if __name__ == '__main__':
    main()

篮球翻译适配器 v2

#!/usr/bin/env python
from abc import abstractmethod
class Player:
    def __init__(self,name):
        self._name = name
    @abstractmethod
    def Attack(self):
        pass
    @abstractmethod
    def Defense(self):
        pass

class Forwards(Player):
    def __init__(self, name):
        super(Forwards,self).__init__(name)
    def Attack(self):
        print("前锋",self._name,"进攻")
    def Defense(self):
        print("前锋",self._name,"防守")

class Center(Player):
    def __init__(self, name):
        super(Center,self).__init__(name)
    def Attack(self):
        print("中锋",self._name,"进攻")
    def Defense(self):
        print("中锋",self._name,"防守")
        
class Guards(Player):
    def __init__(self, name):
        super(Guards,self).__init__(name)
    def Attack(self):
        print("后卫",self._name,"进攻")
    def Defense(self):
        print("后卫",self._name,"防守")

def main():
    Tom = Forwards('Tom')
    Tom.Attack()
    Joe = Guards('Joe')
    Joe.Attack()
    Fred = Center('Fred')
    Fred.Attack()
    Fred.Defense()

if __name__ == '__main__':
    main()

篮球适配器模式 v3

#!/usr/bin/env python
from abc import abstractmethod

class Player:
    def __init__(self,name):
        self._name = name
    @abstractmethod
    def Attack(self):
        pass
    @abstractmethod
    def Defense(self):
        pass

class Forwards(Player):
    def __init__(self, name):
        super(Forwards,self).__init__(name)
    def Attack(self):
        print("前锋",self._name,"进攻")
    def Defense(self):
        print("前锋",self._name,"防守")

class Center(Player):
    def __init__(self, name):
        super(Center,self).__init__(name)
    def Attack(self):
        print("中锋",self._name,"进攻")
    def Defense(self):
        print("中锋",self._name,"防守")
        
class Guards(Player):
    def __init__(self, name):
        super(Guards,self).__init__(name)
    def Attack(self):
        print("后卫",self._name,"进攻")
    def Defense(self):
        print("后卫",self._name,"防守")
        
class ForeignCenter(Player):
    @property
    def Name(self):
        return self._name
    @Name.setter
    def Name(self, name):
        self._name = name
    def Attack(self):
        print("外籍中锋",self._name,"进攻")
    def Defense(self):
        print("外籍中锋",self._name,"防守")


class Translator(Player):
    def __init__(self,name):
        super(Translator,self).__init__(name)
        self.__fc = ForeignCenter(name)
        self.__fc.Name = name
    def Attack(self):
        self.__fc.Attack()
    def Defense(self):
        self.__fc.Defense()

def main():
    Tom = Forwards('Tom')
    Tom.Attack()
    Joe = Guards('Joe')
    Joe.Attack()
    Fred = Translator('Fred')
    Fred.Attack()
    Fred.Defense()    
        
if __name__ == '__main__':
    main()