萌芽的心
发表于 2025-3-21 18:22:56
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Antagonist
发表于 2025-3-22 00:04:58
Flow and Transport in Subsurface EnvironmentThe Singleton is the most hated design pattern in the (rather limited) history of design patterns. Just stating that, however, doesn’t mean you shouldn’t use the singleton: a toilet brush is not the most pleasant device either, but sometimes it’s simply necessary.
护航舰
发表于 2025-3-22 02:29:22
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连词
发表于 2025-3-22 07:32:39
https://doi.org/10.1007/978-981-15-7720-8It’s a fact of life that objects are quite often composed of other objects (or, in other words, they aggregate other objects). Remember, we agreed to equate aggregation and composition at the start of this section of the book.
定点
发表于 2025-3-22 10:14:32
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CHANT
发表于 2025-3-22 14:37:42
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CHANT
发表于 2025-3-22 19:22:53
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Morose
发表于 2025-3-22 23:59:22
Guerino B. Mazzola,Paul B. CherlinWhen we looked at the Decorator design pattern, we saw the different ways of enhancing the functionality of an object. The Proxy design pattern is similar, but its goal is generally to preserve exactly (or as closely as possible) the API that is being used while offering certain internal ehnancements.
fidelity
发表于 2025-3-23 01:32:06
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现晕光
发表于 2025-3-23 09:16:58
https://doi.org/10.1007/978-1-4614-7527-9An iterator is, quite simply, an object that can point to an element of a collection and also knows how to move to the next element in the collection. As such, it is only required to implement the . operator and the . operator (so you can compare two iterators and check if they point to the same thing). That’s it.