Swift UISliderの使い方

    import UIKit

    class ViewController: UIViewController {

        @IBOutlet weak var label: UILabel!
        @IBOutlet weak var sliderValue: UISlider!

        override func viewDidLoad() {
            super.viewDidLoad()
        }

        @IBAction func slider(_ sender: Any) {
        }

    }

@IBAction func slider(_ sender: Any) {
    //slider.valueはFloatなのでStringにキャストしなければいけない
    label.text = String(slider.value) 
}