A metatype type refers to the type of any type, including class types, structure types, enumeration types, and protocol types.

一个元类型是对任一类型(包括类类型，结构类型，枚举类型以及协议类型)的类型的引用。

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A metatype type refers to the type of any type, including class types, structure types, enumeration types, and protocol types.

一个元类型是对任一类型(包括类类型，结构类型，枚举类型以及协议类型)的类型的引用。

youdao