python的__init_subclass__

在Python中，`__init_subclass__`是一个特殊的类方法，用于在子类被创建时自动调用。该方法允许在子类定义之前执行一些初始化操作。当子类继承一个父类并定义了`__init_subclass__`方法时，父类的`__init_subclass__`方法会自动调用，并将子类作为第一个参数传递，同时可以接收其他关键字参数。这样做有助于在子类定义之前对类进行一些配置或设置。可以通过在父类的`__init_subclass__`方法中添加适当的逻辑，来自定义子类的行为。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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