模板方法模式的另一个选择是策略模式，它抽取了多变的行为到一个接口中。
An alternative to the Template Method is the Strategy design pattern, which factors the variant behavior into an interface.
模板方法模式的另一个选择是策略模式，它抽取了多变的行为到一个接口中。
An alternative to the Template Method is the Strategy design pattern, which factors the variant behavior into an interface.
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