Swift 由If语句触发的具有两个分段的一个ViewController

我试图得到两个由If语句触发的序列。这是我到目前为止的编码

func prepareforsgue（segue:UIStoryboardSegue，AnyObject？）{

国际单项体育联合会的声明如下：

         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可以工作，但变量的信息不会被传输，即显示“Winner”和“RoundWinner”值的标签保持空白。我是新手，希望错误很简单。谢谢。

你有什么问题？哪部分不工作？我有变量“Winner”和“RoundWinner”我试图在相应的ViewControllers上切换到。这些切换可以工作，但信息没有发送，即，假设显示变量值的标签为空。为什么在切换中使用UIButton而不是self？我看不到您在切换中的if语句中传递值。如果添加断点在ThirdVc.WinnerName，Winner的价值是什么？您是否尝试添加println（Winner）要查看值是什么？If语句是由初始按钮按下触发的一长串动作。我将它们更改为self，它们仍然可以正常工作，但对情况没有帮助。我对If语句的逻辑是，例如，如果第一个随机数大于其他随机数，则会增加玩家的分数，然后显示，定义变量，然后执行segue，该segue应根据prepareforsgue将变量带入。@MwcsMac

         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())}}
}