一个ViewController有一个由If语句触发的两个segue

Question

我试图有两个由If语句触发的segue。这是我到目前为止的编码。

func prepareForSegue（segue：UIStoryboardSegue，AnyObject？）{

    if segue.identifier == "SomeoneWon" {

            var ThirdVC: WinnerViewController = segue.destinationViewController as! WinnerViewController

            ThirdVC.WinnerName = Winner}

    else if segue.identifier == "PopUp" {

            var PopUpVC: PopUpViewController = segue.destinationViewController as! PopUpViewController

            PopUpVC.RoundWinnerPop = RoundWinner}

If语句如下：

         if firstrandomnumber > secondrandomnumber && firstrandomnumber >    thirdrandomnumber && firstrandomnumber > fourthrandomnumber {
        Player1ScoreTotal += 1
        self.Player1Score.text = String(Player1ScoreTotal)
        Winner = receivedString1
        RoundWinner = receivedString1

        if Player1ScoreTotal == 5{
            performSegueWithIdentifier("SomeoneWon", sender: UIButton())}

        else {
            performSegueWithIdentifier("PopUp", sender: UIButton())   }}






    else if secondrandomnumber > firstrandomnumber && secondrandomnumber > thirdrandomnumber && secondrandomnumber > fourthrandomnumber {
        Player2ScoreTotal += 1
        self.Player2Score.text = String(Player2ScoreTotal)
        Winner = receivedString2
        RoundWinner = receivedString2

        if Player2ScoreTotal == 5{
            performSegueWithIdentifier("SomeoneWon", sender: UIButton())}

        else {
            performSegueWithIdentifier("PopUp", sender: UIButton())}}






    else if thirdrandomnumber > firstrandomnumber && thirdrandomnumber > secondrandomnumber && thirdrandomnumber > fourthrandomnumber {
        Player3ScoreTotal += 1
        self.Player3Score.text = String(Player3ScoreTotal)
        Winner = receivedString3
        RoundWinner = receivedString3

        if Player3ScoreTotal == 5{
            performSegueWithIdentifier("SomeoneWon", sender: UIButton())}

        else{
            performSegueWithIdentifier("PopUp", sender: UIButton())}}









    else if fourthrandomnumber > firstrandomnumber && fourthrandomnumber > secondrandomnumber && fourthrandomnumber > thirdrandomnumber {
        Player4ScoreTotal += 1
        self.Player4Score.text = String(Player4ScoreTotal)
        Winner = receivedString4
        RoundWinner = receivedString4


        if Player4ScoreTotal == 5{
            performSegueWithIdentifier("SomeoneWon", sender: UIButton())
            }

        else{
            performSegueWithIdentifier("PopUp", sender: UIButton())}}
}

segue有效，但变量的信息不会被转移，即假设显示“Winner”和“RoundWinner”值的标签保持空白。我是新人，所以我希望错误很简单。感谢。