Swift --- 资料查阅

Swift 基础文档

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• Swift 入门语法 (英文)

https://docs.swift.org/swift-book/GuidedTour/GuidedTour.html# (opens new window)

• 菜鸟教程(推荐) 入门级别 基本与官网相同

https://www.runoob.com/swift/swift-tutorial.html (opens new window)