Enumerators only allow reading the data in the collection.

列举值只允许读取集合中的资料。

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Enumerators provide read-only access to the data in a collection.

列举值提供对集合中资料的唯读存取。

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Enumerators provide read-only access to the data in a collection.

列举值提供对集合中资料的唯读存取。

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