enum : Int
enum numbers001 : Int {
case zero // 0
case one // 1
case two // 2
}
var number000 : numbers001 = .zero
print(number000) // result : zero
var number000Int = number000.rawValue
print(number000Int) // result : 0
var number001 : numbers001 = .one
print(number001) // result : one
var number001Int = number001.rawValue
print(number001Int) // result : 1
var number002 : numbers001 = .two
print(number002) // result : two
var number002Int = number002.rawValue
print(number002Int) // result : 2
// blank
enum numbers002 : Int {
case ten = 10 // 10
case twenty = 20 // 20
case blank // 21
case thirty = 30 // 30
}
var number010 : numbers002 = .ten
print(number010) // result : ten
var number010Int = number010.rawValue
print(number010Int) // result : 10
var number020 : numbers002 = .twenty
print(number020) // result : twenty
var number020Int = number020.rawValue
print(number020Int) // result : 20
var blank : numbers002 = .blank
print(blank) // result : blank
var blankInt = blank.rawValue
print(blankInt) // result : 21
var number030 : numbers002 = .thirty
print(number030) // result : ten
var number030Int = number030.rawValue
print(number030Int) // result : 30