![](data:image/png;base64,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)
01 | 课程介绍
![](data:image/png;base64,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)
02 | 内容综述
![](data:image/png;base64,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)
03 | Swift版本历史和各版本特性快览
![](data:image/png;base64,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)
04 | Swift和Objective-C的主要区别
![](data:image/png;base64,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)
05 | swiftc:强大的命令行工具
07 | Playground:Swift学习的乐园
16 | 如何在Swift中获取子串和进行字符串比较
46 | Dictionary:Swift中的字典类型
62 | 像访问数组和字典一样访问类和结构体:下标和下标重载
65 | 如何在Swift中实现多态和进行类型转换
66 | 如何为现有的类、结构体、枚举或协议添加新功能
80 | 更高级的抽象:Cocoa Operation
88 | SwiftUI:Apple全新的UI框架
100 | 没有最方便,只有更方便:对Swift标准库的一些扩展
105 | Swift和Objective-C的运行时简介
107 | 如何在Swift和Objective-C中相互调用
108 | Swift和Objective-C混合编程踩坑指南
120|加餐3:Swift面试中的要点注意事项&结课测试