Swift中函数返回多值问题

func minMax(array: [Int]) -> (min: Int, max: Int)

{

    var currentMin = array[0]

    var currentMax = array[0]

    for value in array[1..<array.count]

    {

        if value < currentMin{

            currentMin = value

        }else if value > currentMax{

            currentMax = value

        }

    }

    return (currentMin,currentMax)

}