Once you've created the EnumSet, you can treat the grouping like any other Set object.

一旦创建了EnumSet，就可以像对待其他任何Set对象那样对待这组对象。

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Enums can also be used in conjunction with sets, and much like the new EnumMap construct, Tiger supplies a new set implementation EnumSet that allows you to work with bitwise operators.

枚举也可以与集合结合使用，而且非常像新的enummap构造，Tiger提供了一套新的EnumSet实现，允许您使用位操作符。

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