PyYAML-如何处理合成

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问题描述

我一直在尝试使用YAML，因为我喜欢它的可读性。

I've been trying to use YAML as I love the readability of it.

但是，我对最佳的组件放置方式有些困惑

However, I'm a bit stumped at the best way to put in components/deal with composition.

让我说这是我要复制的课程：

Let's say I have this as a class I'm trying to replicate:

basicai = aggressiveAI()

fightercomponent = fighter(strength=10, dexterity=5, death=dramaticdeath())

orc = Object(name='orc', hp=100, fighter=fightercomponent, ai=basicai)

如何

大多数情况下，我希望最终无法获得一长串专门命名的组件对象

Mostly, I'd like to be able to not end up with a long list of specifically named component objects and main objects all spread out.

推荐答案

假设您有适当的构造函数和表示符来创建对象，则可以执行以下操作： / p>

Assuming that you have proper constructors and representers to create the objects, you can do:

- !AggresiveAI &basicai
- !Fighter &fightercomponent
     strength: 10
     dexterity: 5
     death: dramaticdeath
- !Object
    name: orc
    hp: 100
    fighter: *fightercomponent
    ai: *basicai

唯一有问题的是，由于YAML存储对象而不是函数调用，因此您对 dramaticdeath 的函数调用。因此，请在类 Fighter

The only thing problematic is your function call to dramaticdeath as YAML stores objects and not function calls. So make that a lookup from the string to the function in the __init__ method of class Fighter

顶层不必是列表，例如将顶层映射。只要在使用别名之前先确定已定义锚即可。

The toplevel doesn't have to be a list, you can e.g. make the toplevel a mapping. Just make sure your anchors are defined before using them in aliases.

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