Question

想象一下，我们有一个代表管道的类。该管道是代表不同操作的对象列表。该管道的第一个元素从Pipe类获取其输入参数。然后，每个对象的输出将成为下一个对象输入参数。

class Pipe():

    def build_pipeline(self):
        Stage1 = Object_X()
        Stage2 = Object_Y() 
        self.pipeline = [Stage1, Stage2]

    def run():
        for p in pipeline:
            # execute p's respective run()
            # pass this to the next element in pipeline      

class Object_X():
   # all kinds of definition

   def run()
       # do something

class Object_Y():
   # all kinds of definition

   def run()
       # do something

一个人如何应对这一挑战？我可以使用任何模式吗？

谢谢

Answer 1

在最简单的情况下，您可以声明并重新分配输入参数/参数：

class Pipe():
    def build_pipeline(self):
        Stage1 = Object_X()
        Stage2 = Object_Y() 
        self.pipeline = [Stage1, Stage2]

    def run():
        input_arg = self.input_arg   # initial input from Pipe class
        for p in pipeline:
            input_arg = p.run(input_arg)

如何遍历由执行特定功能的类组成的管道，并将结果传递给下一个类？

1 个答案: