//: Playground - noun: a place where people can play

import UIKit

/*

这里的枚举没有给它的成员默认值, 而是给它绑定了一个类型,

之后可以在程序中对这些成员进行赋值

*/

enum Barcode

{

    case UPCA(Int, Int, Int, Int)       // 条形码

    case QRCode(String)                 // 二维码

}

// 示例

let productCodeA = Barcode.UPCA(4, 102, 245, 8)

let productCodeB = Barcode.QRCode("This is a QRCodeInfomation")

switch productCodeA {

case .UPCA(let systemNumber, let manufacture, let identifier, let check):

    print("UPC-A with value of \(systemNumber), \(manufacture), \(identifier), \(check)")

case .QRCode(let info):

    print(info)

}