http://numbbbbb.github.io/the-swift-programming-language-in-chinese/chapter1/02_a_swift_tour.html

http://numbbbbb.github.io/the-swift-programming-language-in-chinese/chapter1/02_a_swift_tour.html

http://numbbbbb.github.io/the-swift-programming-language-in-chinese/chapter1/02_a_swift_tour.html

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原文地址：https://www.cnblogs.com/mykaka/p/3784459.html