switch — 모든 경우 처리, 범위, 튜플, where

let fruit = "apple"
switch fruit {
case "apple": print("Good fiber")
case "banana": print("Potassium")
default: print("Tasty fruit")
}

let score = 73
switch score {
case 90...100: print("A")
case 80..<90: print("B")
case 60..<80: print("C")
default: print("D or below")
}

let point = (x: 1, y: -1)
switch point {
case (0, 0): print("Origin")
case (let x, 0): print("On X-axis, x=\\(x)")
case (0, let y): print("On Y-axis, y=\\(y)")
case (1... , let y) where y < 0: print("x >= 1 and y negative")
default: print("Somewhere else")
}

let number = 12
switch number {
case let n where n % 2 == 0: print("\\(n) is even")
default: print("odd")
}