복합 케이스와 fallthrough

let letter = "a"
switch letter {
case "a", "e", "i", "o", "u":
    print("Vowel")
default:
    print("Consonant")
}

let day = 6
switch day {
case 6, 7:
    print("Weekend")
case 1, 2, 3, 4, 5:
    print("Weekday")
default:
    print("Invalid day")
}

let code = 204
switch code {
case 200, 201, 204:
    print("Success")
case 400...499:
    print("Client error")
default:
    print("Other")
}

let point = (0, 5)
switch point {
case (let v, 0), (0, let v):
    print("On an axis at distance \(v)")
default:
    print("Off the axes")
}

let n = 1
switch n {
case 1:
    print("one")
    fallthrough
case 2:
    print("two")
default:
    print("done")
}

let level = 3
switch level {
case 3:
    print("Level 3 perks")
    fallthrough
case 2:
    print("Level 2 perks")
    fallthrough
case 1:
    print("Level 1 perks")
default:
    break
}

let x = 10
switch x {
case 10:
    print("ten")
    fallthrough
default:
    print("reached default")
}

let grade = "B"
switch grade {
case "A", "B":
    print("Passing")
default:
    print("Other")
}

let tier = 2
var perks = [String]()
switch tier {
case 2:
    perks.append("Premium")
    fallthrough
case 1:
    perks.append("Basic")
default:
    break
}
print(perks)

let n = 0
switch n {
case 0:
    print("zero")
    fallthrough
case 1, 2:
    print("small")
default:
    print("large")
}

let status = "warn"
switch status {
case "warn", "error":
    print("Needs attention")
default:
    print("OK")
}

let n = 2
switch n {
case 1, 2: print("small")
default: print("big")
}