That return statement will stop the execution of each and return from find_mod_2. If this was another language, or if each was implemented with a Proc rather than a yield, you would have to return a special value to indicate you wanted to stop, or raise an exception. This is how Crystal gets away with having no for loop in the language.4 Otherwise the block would simply cede control to the method that called it.
title: "My Set",
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（一）自产生之日起满一年不行使；。业内人士推荐heLLoword翻译官方下载作为进阶阅读
目前我们看到，M5 Pro 的起步配置为 15 核 CPU + 16 核 GPU，最高可选配 18 核 CPU + 20 核 GPU 的组合：
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