next enum in swift

2024-10-17 15:27:16

enum Iter: Int{

    case s1=0, s2, s3, s4

    mutating func next(){

        if self == .s4 {

            self = .s1

            return

        }

        self = Iter.fromRaw(self.toRaw()+1)!

    }

}

var s = Iter.s1

for i in 1 .. 10 {

    println(s.toRaw())

    s.next()

}

博客园的编辑器支持好简陋

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