閉包

https://medium.com/%E5%BD%BC%E5%BE%97%E6%BD%98%E7%9A%84-swift-ios-app-%E9%96%8B%E7%99%BC%E5%95%8F%E9%A1%8C%E8%A7%A3%E7%AD%94%E9%9B%86/%E8%AE%93-closure-%E5%9C%A8-function-%E5%A4%96%E7%B9%BC%E7%BA%8C%E4%BD%BF%E7%94%A8%E7%9A%84-escaping-40d50b17f75b

https://medium.com/@NickYu/swift%E9%97%9C%E9%8D%B5%E5%AD%97-autoclosure%E7%A0%94%E7%A9%B6%E7%AD%86%E8%A8%98-e1a7a323dc78

属性观察器 willSet didSet

https://swiftgg.gitbook.io/swift/swift-jiao-cheng/10_properties#property-observers

引用类型：强引用/弱引用/无主引用

https://swiftgg.gitbook.io/swift/swift-jiao-cheng/23_automatic_reference_counting

构造过程：

https://swiftgg.gitbook.io/swift/swift-jiao-cheng/14_initialization#default_initializers

https://swifter.tips/init-keywords/ DESIGNATED，CONVENIENCE 和 REQUIRED

Xcode选择创建模版：https://medium.com/@nwy0206/swift%E7%AD%86%E8%A8%98-xcode-project-templates%E7%9A%84%E5%B7%AE%E7%95%B0-abb9315eb35a

cocoa touch framework 等为创建或使用框架而设

组件与代码建立关联 IBOutlet，IBOutlet关键字是InterfaceBuilderOutlet的缩写

IBAction，它用于允许代码响应用户与应用程序界面的交互行为

https://developer.apple.com/library/archive/referencelibrary/GettingStarted/DevelopiOSAppsSwift/ConnectTheUIToCode.html

Segue:

https://medium.com/%E5%BD%BC%E5%BE%97%E6%BD%98%E7%9A%84-swift-ios-app-%E9%96%8B%E7%99%BC%E6%95%99%E5%AE%A4/%E7%B0%A1%E6%98%93%E8%AA%AA%E6%98%8Excode%E4%B8%AD%E7%9A%84%E9%A1%AF%E7%A4%BA%E4%B8%8B%E4%B8%80%E5%80%8B%E7%95%AB%E9%9D%A2%E6%96%B9%E6%B3%95-%E7%94%B1%E7%A8%8B%E5%BC%8F%E8%A7%B8%E7%99%BC%E7%9A%84%E6%96%B9%E5%BC%8F-segue-95a42506b7fb

包管理：

https://medium.com/%E5%BD%BC%E5%BE%97%E6%BD%98%E7%9A%84-swift-ios-app-%E9%96%8B%E7%99%BC%E5%95%8F%E9%A1%8C%E8%A7%A3%E7%AD%94%E9%9B%86/%E4%BD%BF%E7%94%A8-spm-%E5%AE%89%E8%A3%9D%E7%AC%AC%E4%B8%89%E6%96%B9%E5%A5%97%E4%BB%B6-xcode-11-%E6%96%B0%E5%8A%9F%E8%83%BD-2c4ffcf85b4b

分发测试应用：

TestFlight

CI：

https://fastlane.tools/

objccn.io