源代码：
// //枚举.原始值.swift // // Created by chenzhen on 16/8/13. // From 大连东软信息学院 // Copyright © 2016年 zhen7216. All rights reserved. // import Foundation enum WeekDays: Int { case Monday = 0 case Tuesday = 1 case Wednesday = 2 case Thursday = 3 case Friday = 4 } var day = WeekDays.Friday func writeGreeting(day: WeekDays) { switch day { case .Monday: print("星期一好") case .Tuesday: print("星期二好") case .Wednesday: print("星期三好") case .Thursday: print("星期四好") case .Friday: print("星期五好") } } let friday = WeekDays.Friday.rawValue let thursday = WeekDays(rawValue: 3) if(WeekDays.Friday.rawValue == 4) { print("今天是星期五") } writeGreeting(day) writeGreeting(WeekDays.Thursday) print(friday) 运行结果：
