swift（四）swift的广义匹配

//swift的广义匹配
let x = 1000
switch x {
    case 1...9:
    println("个位数")
    case 1...9:
    println("十位数")
    default:
    println("其他")

}

let point = (10,10)
switch point
{
case (0,0):
    println("0坐标")
case (1...10,1...10):
    println("x y一到十")
    case (_,0):
    println("x轴")
default:
    println("其他")
}

// Value Bindings
switch point
{
    
case (let x, 10):
    println(x)
case let( x,  y) where x == -y:
    println("\(x):\(y)")
default:
    println("其他")
}