枚举的和值的转换

枚举的和值的转换

enum SmileType: String {

    case haha = "哈哈笑"

    case hehe = "呵呵笑"

    case heihei = "嘿嘿笑"

}

class ViewController: UIViewController {

    override func viewDidLoad() {

        super.viewDidLoad()

        // Do any additional setup after loading the view.

        let smileType: SmileType = .haha

        print(smileType.rawValue) // 哈哈笑

        let type = SmileType(rawValue: "哈哈笑")

        print(type) //  Optional(项目名称.SmileType.haha)

    }

}