In some ways, a generator is like the closures which were discussed in previous installments of this column discussing functional programming (see Resources).
在某些方面,生成器就象本专栏前面文章讨论的函数型编程中的“终止”(参见参考资料)。
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This column closes with an explanation of Expect's limits, a peek at working Expect code that solves common problems, and references that can lead you deeper into Expect programming.