python版本的模板方法模式

模板方法将不变的行为移到超类，去除子类中的重复代码来体现它的优势

# -*- coding:UTF-8 -*-
import abc


class AbstractClass(metaclass=abc.ABCMeta):
    @abc.abstractmethod
    def primitive_operation1(self):
        pass

    @abc.abstractmethod
    def primitive_operation2(self):
        pass

    def template_method(self):
        self.primitive_operation1()
        self.primitive_operation2()
        print("")


class ConcreteClassA(AbstractClass):
    def primitive_operation1(self):
        print("具体A方法1实现")

    def primitive_operation2(self):
        print("具体A方法2实现")


class ConcreteClassB(AbstractClass):
    def primitive_operation1(self):
        print("具体B方法1实现")

    def primitive_operation2(self):
        print("具体B方法2实现")


if __name__=="__main__":
    c = ConcreteClassA()
    c.template_method()

    c=ConcreteClassB()
    c.template_method()