You would typically use deftype to implement new kinds of collections, or to define completely new abstractions around protocols that you specify.
您通常使用deftype来实现新类型的集合，或定义围绕您所指定协议的全新抽象事物。
You would typically use deftype to implement new kinds of collections, or to define completely new abstractions around protocols that you specify.
您通常使用deftype来实现新类型的集合，或定义围绕您所指定协议的全新抽象事物。
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