The swift version of the enumeration variable

The swift version of the enumeration variable

Swift's enumeration type is very similar to the normal class, when used, do not think he is a constant, the following is the test with the source code

////Viewcontroller.swift//Swiftenum////Created by youxianming on 15/10/9.//copyright©2015 year Zipeiyi. All rights reserved.//Import UIKitenumPlanet:int { CaseMercury =1, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune}enumcompasspoint:string { CaseNorth , South, East, West}enumBarcode { CaseUPCA (int, int, int, int) CaseQRCode (String)}enumMinionindex:int { CaseDAVE, BOB, JERRY, JORGE, KEVIN, MARK, PHIL, STUART, TIM .StaticLet Minionnames =[DAVE:"Dave", BOB:"Bob", JERRY:"Jerry", JORGE:"Jorge", KEVIN:"Kevin", MARK:"Mark", PHIL:"Phil", STUART:"Stuart", TIM:"Tim"] Func minionname ()-String {ifLet Minionname =Minionindex.minionnames[self] {returnMinionname}Else {                        return "Minion"}} func minionimage ()UIImage? {                returnUIImage (named:"minion\ (Minionname ())")    }}classViewcontroller:uiviewcontroller {Overridefunc viewdidload () {super.viewdidload () normalexample () planetexample ()  Compasspointexample () barcodeexample () Minionindexexample ()} func Normalexample () {Let vegetable="Red Pepper"                SwitchVegetable { Case "Celery": Print ("Add Some raisins and make ants on a log.")                     Case "Cucumber","Watercress": Print ("That's would make a good tea sandwich.")                     CaseLet XwhereX.hassuffix ("Pepper"): Print ("is it a spicy \ (x)?")                    default: Print ("everything tastes good in soup.")}}} func Planetexample () {ifLet planet:planet = Planet (rawValue:1) {                        //Switch Operation            SwitchPlanet { Case . Mercury:print ("\ (planet) \ (Planet.rawvalue)")                             Case . Earth:print ("\ (planet) \ (Planet.rawvalue)")                             Case . Neptune:print ("\ (planet) \ (Planet.rawvalue)")                            default: Print ("\ (planet) \ (Planet.rawvalue)")            }                    } Else {                        //There is no such enumeration valuePrint"No value")}}} func Compasspointexample () {ifLet Compasspoint:compasspoint = CompassPoint (rawValue:"Kxo") {                        //Switch Operation            SwitchCompassPoint { Case . North:print ("\ (compasspoint) \ (compasspoint.rawvalue)")                             Case . West:print ("\ (compasspoint) \ (compasspoint.rawvalue)")                            default: Print ("\ (compasspoint) \ (compasspoint.rawvalue)")            }                    } Else {                        //There is no such enumeration valuePrint"No value")}}} func Barcodeexample () {Let BarCode= BARCODE.UPCA ( -, -,Ten, -)                SwitchBarCode { Case. UPCA ( -, -,Ten, -): Print ("YES")                    default: Print ("NO")}}} func Minionindexexample () {print (MinionIndex.DAVE.minionImage ())}}

Enumeration types for RawValue types

Can take parameters, can take a method

Non-rawValue type

The swift version of the enumeration variable