## 猿辅导公司的 ## Swift 迁移之路 唐巧 ## 公司简介 • K12 领域的独角兽公司。 - 拥有 2 亿用户，月活几千万。 - 互联网女皇报告中的在人工智能领域崛起的中国公司。 Stanford Question Answering Dataset (Ongoing) 1) Google + Carnegie Mellon (USA) ![Image](/uplo • 猿辅导 App 的 Swift 迁移之路 • 猿辅导老师端 App 的 Swift 迁移之路 - 小猿搜题 App 的 Swift 迁移之路 |Date|Version| |---|---| |2014-09-09|Swift 1.0| |2014-10-22|Swift 1.1| |2015-04-08|Swift 1.2| |2015-09-21|Swift 2.0| |2016-09-13|Swift |2016-09-13|Swift 3.0| |2017-09-19|Swift 4.0| |2018-03-29|Swift 4.1| |2018-07-05|Swift 4.2| ## 猿辅导的 Swift 迁移之路 ## 决策回顾 • 背景 • 时间：2016 年 6 月 commit e8529c341bbfe6ff22af79b787f16b438b10be02 Author: huangling

## 数据迁移 ## 存量 MySQL 迁移到 TiDB 服务 UDTS 产品支持 MySQL(5.5/5.6/5.7/8.0) 到 TiDB 的全量数据迁移，及增量数据同步。可协助用户在不停机的情况下轻松将业务从 MySQL 切换至 TiDB。 ## 自建 TiDB 迁移到 TiDB 服务 UDTS 产品支持 TiDB 全量数据迁移至 TiDB 服务。用户在源 TiDB 开启 Pump, MySQL 从库 UDTS 产品支持 TiDB 全量数据迁移至 MySQL 数据库。用户在 TiDB 服务上开启 Binlog 可将数据增量同步至下游 MySQL。UDTS 与 TiDB Binlog 服务一起可协助用户轻松建立 MySQL 从库。 ## 为 TiDB 服务建立 TiDB 从库 UDTS 产品支持 TiDB 全量数据迁移至 TiDB 数据库。用户在源 TiDB 服务上开启 Binlog

## SWIFT HANDBOOK # Table of Contents Preface The Swift Handbook Conclusion ## Preface The Swift Handbook follows the 80/20 rule: learn in 20% of the time the 80% of a topic. In particular, the goal goal is to get you up to speed quickly with Swift. This book is written by Flavio. I publish programming tutorials on my blog flaviocopes.com and I organize a yearly bootcamp at bootcamp.dev. You can can reach me on Twitter @flaviocopes. Enjoy! ## The Swift Handbook • 1. Introduction to Swift • 2. Variables • 3. Objects • 4. Operators • 4.1. Assignment operator 4.2. Arithmetic operators o 4.3

## Develop in Swift Swift Coding Club  go green ![Image](/uploads/documents/7/2/4/a/724a5751e557c7e782c585e4ad5907e2/p1_2 Started ## Welcome to the Swift Coding Club! Learning to code teaches you how to solve problems and work with others in creative ways. And it helps you bring your ideas to life. Swift Coding Clubs are an excellent excellent way to learn how to code and design apps. Activities built around Swift, Apple's coding language, help you collaborate as you learn to code, prototype apps and think about how code can make

## The Swift Programming Language Swift 5.7 Edition Welcome to Swift ## About Swift Swift is a fantastic way to write software, whether it’s for phones, desktops, servers, or anything else that runs compromising on either. Swift is friendly to new programmers. It’s an industrial-quality programming language that’s as expressive and enjoyable as a scripting language. Writing Swift code in a playground with code and see the results immediately, without the overhead of building and running an app. Swift defines away large classes of common programming errors by adopting modern programming patterns:

## Swift var people = ["Dave", "Brian", "Alex", "Alex", "  Welcome to Swift ## About About Swift Swift is a new programming language for iOS and OS X apps that builds on the best of C and Objective-C, without the constraints of C compatibility. Swift adopts safe programming patterns and adds flexible, and more fun. Swift's clean slate, backed by the mature and much-loved Cocoa and Cocoa Touch frameworks, is an opportunity to reimagine how software development works. Swift has been years in

## Swift for TensorFlow ## First-Class Machine Learning in Swift 莲叔(aaaron7) ## About me - 莲叔 / aaaron7 - SwiftGG 成员，目前没有参与翻译工作，主要负责在群里灌水； - 目前供职于 UC 短视频组； - 兴趣：Swift，函数式编程，机器学习； - 自我要求：争取不坑 ## Why - Swift for TensorFlow How Magic behind • Graph Program Extraction Example • Linear Classification • Collaborative Filtering ## Why ## Why Swift As we know Swift has a few problems swift 1.2 2 到swift 2.0 升级之路上的坑  原 Swift3.0 的坑  升级到Swift

## Swift Style ## @gregheo ## Style? ## raywenderlich / swift-style-guide Watch 330 Star 3,684 ☀ Fork 524 Code Issues 15 Pull requests 0 Pulse Graphs The official Swift style guide ▼ https://github.com/raywe Download ZIP gregheo Merge pull request #115 from raywenderlich/swift2 Latest commit da0a801 on Nov 5 screens Re-indent tip and screenshot a year ago README.markdown markdown enumerate() is a protocol method now 3 months ago ### The Official raywenderlich.com Swift Style Guide This style guide is different from others you may see, because the focus is centered on

## Swift 中的协议编程 # Protocol Oriented Programming @Swift @李洁信 ## Word lookup Different word definitions Kingsoft Def Youdao Def render View Baidu Def Swift [swift] n. 褐雨燕 n. 苹果公司推出的编程语言 ## Protocols NSCopying Low-level syntax features NSFastEnumeration • Hide Implementations ## Protocols in Swift • Support Classes & Structs & Enums Requirements • Property, Initializer, Class & Instance Protocol ## Struct & Enum • Properties • Methods • Value Type • No Inheritance • Protocol The Swift Standard Library 55 Protocols 102 Structs 9 Enums 5 Classes ## 55 protocols -Type BooleanType

FELLO FELLO FELLO FELLO FELLO FELLO FELLO >Hello算法 动画图解、一键运行的数据结构与算法教程 靳宇栋 (@krahets) Hello 算法 Swift 语言版 作者：靳宇栋 (@krahets) 代码审阅：@nuomi1  $ 对应的区间是 “左闭右开” 的，对应的遍历范围为 $ a, a + 1, \ldots, b - 1 $ ： /// == File: iteration.swift === /* for 循环 */ func forLoop(n: Int) -> Int { var res = 0 // 循环求和 1, 2, ..., n-1, n