The values in an enumeration set are typically used to provide input to a method although there are situations where they are useful to determine an output type.
枚举集中的值通常用于提供方法输入，但是有些情况下，它们还可用于判断输出的类型。
The values in an enumeration set are typically used to provide input to a method although there are situations where they are useful to determine an output type.
枚举集中的值通常用于提供方法输入，但是有些情况下，它们还可用于判断输出的类型。
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