One remark though, the definition allows us to call even a single class “a module”, but in practice it’s almost never used that way. The most common understanding of a module is something in between a class and an application.
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，这一点在WPS官方版本下载中也有详细论述
Фото: Екатерина Чеснокова / РИА Новости
Because we have overridden the rand function it