swift update uilabel text button
import UIKit
class ViewController: UIViewController {
var arrays = ["A", "b", "C", "D", "E", "F"]
var currentIndex = 0
@IBOutlet weak var ChangeText: UILabel!
override func viewDidLoad() {
super.viewDidLoad()
ChangeText.text = arrays[currentIndex]
}
@IBAction func Button() {
currentIndex++
if (currentIndex == arrays.count {
currentIndex = 0
}
ChangeText.text = arrays[currentIndex]
}
}