Swift nested types
/*
Nested types
one type nexted in other type
*/
struct BlackJackCard{
enum Suit: String{
case spades = "heitao",
hearts="hongtao",diamonds="fangkuai",clubs="caohua"
}
enum Rank:Int{
case two=2,three,four,five,six,seven,eight,nine,ten
case jack,queen,king,ace
struct Value{
let first:Int,second:Int?
}
var values:Value{
switch self {
case .ace:
returnValue(first:1,second:11)
case .jack,.queen,.king:
returnValue(first:10,second:nil)
default:
returnValue(first:self.rawValue,second:nil)
}
}
}
let rank:Rank,suit:Suit
var description:String{
var output = "suit is \(suit.rawValue)"
output += " value is \(rank.values.first)"
if let second =rank.values.second{
output += " or \(second)"
}
return output
}
}
let theAceOfSpades = BlackJackCard(rank:.ace,suit:.spades)
print("theAceOfSpades:\(theAceOfSpades.description)")
enum Test:Int{
case a=2,b,c,d,e
case f,g,h
}
let heartsSymbol = BlackJackCard.Suit.hearts.rawValue
var test=Test.f.rawValue