声明枚举类型的几种方法和使用:
一:
enum Direction{ case North case South case East case West }; //简写如下 enum Direction2{ case North,South,West,East };二:
//申明一个枚举 var d = Direction.North; var d2 = Direction.East; d2 = .South;//.South因为d2肯定是Direction枚举类型 //.South = Direction.South //明确规定d3类型是Direction,.East就可以省略,同上远离 var d3 : Direction = .East; var d4 : Direction = Direction.East; switch d4 { case .North: println("in north") case .South: println("in south") case .East: println("in east") default: println("other") } //枚举类型一种,相似C enum Couse : Int { case android = 1,ios,windowsphone,symbian } var c : Couse = Couse.ios; let v = c.rawValue;//ios转换成int println("v is: \(v)"); var c2 = Couse(rawValue: 4)//根据索引返回枚举值 if c2 == Couse.symbian{ println("is symbian"); }