iOS Multiple Scene

//1.

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        let destination: SecondViewController = segue.destination as! SecondViewController

        destination.messsage = self.txtMessage.text!
}

// 2.
var messsage: String = ""

    override func viewDidLoad() {
        super.viewDidLoad()

        self.lblMessage.text = self.messsage
    }