您可能还想重新阅读第1部分中的“类型映射模式”这一部分来回忆一下如何内部解析类型映射。
You may also want to reread the "type mapping Pattern" section in Part 1 to refresh your memory on how type mappings are resolved internally.
回忆在第1章中Scala使用方括号来指明范型类型参数。
Recall from Chapter 1 that Scala USES square brackets ([...]) for generic type parameters.
它还使我们回忆起对艺术的不同类型以及他们每个人如何取决于特殊的艺术家和仪器使用。
It also recalls us about the different types of art and how each of them depends on special artist and special instruments used.
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