And Groovy supports an external iterator (also known as a pull iterator because you must request the next item in the collection), shown in Listing 3.
而且Groovy支持外部迭代器(也称为pull迭代器，因为必须请求集合中的下一项)，如清单3所示。
And Groovy supports an external iterator (also known as a pull iterator because you must request the next item in the collection), shown in Listing 3.
而且Groovy支持外部迭代器(也称为pull迭代器，因为必须请求集合中的下一项)，如清单3所示。
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