IOS简单计算器swift4版本含开发文档

简单的加法计算器，用于学习IOS的开发，最新版swift。

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2019-02-25 19:12  Calculation_add\
     文件        6148  2019-02-25 19:11  Calculation_add\.DS_Store
     目录           0  2019-02-25 19:12  __MACOSX\
     目录           0  2019-02-25 19:12  __MACOSX\Calculation_add\
     文件         120  2019-02-25 19:11  __MACOSX\Calculation_add\._.DS_Store
     目录           0  2019-02-25 19:08  Calculation_add\Calculation_add\
     文件        1209  2019-02-25 19:08  Calculation_add\Calculation_add\ViewController.swift
     目录           0  2019-02-25 19:12  __MACOSX\Calculation_add\Calculation_add\
     文件         333  2019-02-25 19:08  __MACOSX\Calculation_add\Calculation_add\._ViewController.swift
     目录           0  2019-02-25 16:29  Calculation_add\Calculation_add\Assets.xcassets\
     目录           0  2019-02-25 16:29  Calculation_add\Calculation_add\Assets.xcassets\AppIcon.appiconset\
     文件        1590  2019-02-25 16:29  Calculation_add\Calculation_add\Assets.xcassets\AppIcon.appiconset\Contents.json
     文件          62  2019-02-25 16:29  Calculation_add\Calculation_add\Assets.xcassets\Contents.json
     目录           0  2019-02-25 19:12  __MACOSX\Calculation_add\Calculation_add\Assets.xcassets\
     文件         171  2019-02-25 16:29  __MACOSX\Calculation_add\Calculation_add\Assets.xcassets\._Contents.json
     目录           0  2019-02-25 19:09  Calculation_add\Calculation_add\base.lproj\
     文件        1658  2019-02-25 16:29  Calculation_add\Calculation_add\base.lproj\LaunchScreen.storyboard
     目录           0  2019-02-25 19:12  __MACOSX\Calculation_add\Calculation_add\base.lproj\
     文件         171  2019-02-25 16:29  __MACOSX\Calculation_add\Calculation_add\base.lproj\._LaunchScreen.storyboard
     文件        8708  2019-02-25 19:09  Calculation_add\Calculation_add\base.lproj\Main.storyboard
     文件         176  2019-02-25 19:09  __MACOSX\Calculation_add\Calculation_add\base.lproj\._Main.storyboard
     文件        2168  2019-02-25 16:29  Calculation_add\Calculation_add\AppDelegate.swift
     文件         227  2019-02-25 16:29  __MACOSX\Calculation_add\Calculation_add\._AppDelegate.swift
     文件        1463  2019-02-25 16:29  Calculation_add\Calculation_add\Info.plist
     文件        5220  2019-02-25 19:07  Calculation_add\IOS寮€鍙?绠€鍗曠殑鍔犳硶璁＄畻鍣?md
     文件         333  2019-02-25 19:07  __MACOSX\Calculation_add\._IOS寮€鍙?绠€鍗曠殑鍔犳硶璁＄畻鍣?md
     目录           0  2019-02-25 16:29  Calculation_add\Calculation_add.xcodeproj\
     文件       22086  2019-02-25 16:29  Calculation_add\Calculation_add.xcodeproj\project.pbxproj
     目录           0  2019-02-25 16:29  Calculation_add\Calculation_add.xcodeproj\xcuserdata\
     目录           0  2019-02-25 18:34  Calculation_add\Calculation_add.xcodeproj\xcuserdata\iris.xcuserdatad\
     目录           0  2019-02-25 18:34  Calculation_add\Calculation_add.xcodeproj\xcuserdata\iris.xcuserdatad\xcdebugger\
............此处省略101个文件信息