calulatorios
............\calulatorios
............\............\AppDelegate.h
............\............\AppDelegate.m
............\............\Base.lproj
............\............\..........\LaunchScreen.xib
............\............\..........\Main.storyboard
............\............\calulatorfounction.h
............\............\calulatorfounction.m
............\............\Images.xcassets
............\............\...............\AppIcon.appiconset
............\............\...............\..................\Contents.json
............\............\Info.plist
............\............\main.m
............\............\RegexKitLite.h
............\............\RegexKitLite.m
............\............\ViewController.h
............\............\ViewController.m
............\calulatorios.xcodeproj
............\......................\project.pbxproj
............\......................\project.xcworkspace
............\......................\...................\contents.xcworkspacedata
............\......................\...................\xcshareddata
............\......................\...................\............\calulatorios.xccheckout
............\......................\...................\xcuserdata
............\......................\...................\..........\songning.xcuserdatad
............\......................\...................\..........\....................\UserInterfaceState.xcuserstate
............\......................\xcuserdata
............\......................\..........\songning.xcuserdatad
............\......................\..........\....................\xcdebugger
............\......................\..........\....................\..........\Breakpoints_v2.xcbkptlist
............\......................\..........\....................\xcschemes
............\......................\..........\....................\.........\calulatorios.xcscheme
............\......................\..........\....................\.........\xcschememanagement.plist
............\calulatoriosTests
............\.................\calulatoriosTests.m
............\.................\Info.plist