ネストした型

/* ネストした型 */
struct BlackjackCard {
    // nested Suit enumeration
    enum NestSuit: Character {
        case Spades = "♠", Hearts = "♡", Diamonds = "♢", Clubs = "♣"
    }
}
 
let card = BlackjackCard.NestSuit.Hearts
print("card = \(card)")
print("card = \(card.rawValue)")