ios - 按下按钮后仅显示第一句

当我第一次按下按钮时，标签上显示“谁是阿诺德？”

当我第二次按下按钮时，我会想要“谁是凯文？”显示在标签字段上，而不是“谁是阿诺德？”

当我第三次按下按钮时，我会想要“刘先生是谁？”显示在标签字段上，而不是“谁是凯文？”

 @IBAction func answerButtonTapped(send: UIButton){

   var question = questionField.text
   var i = 0


   var listOfQuestions = ["Who is Arnold?", "Who is Kevin?", "Who is Liu?"]


    for (i=0; i<=listOfQuestions.count; i++){
        questionField.text = "(listOfQuestions[i])"
    }
}

最佳答案

var counter = 0
var listOfQuestions = ["Who is Arnold?", "Who is Kevin?", "Who is Liu?"]

@IBAction func answerButtonTapped(send: UIButton){
  questionField.text = listOfQuestions[counter%listOfQuestions.count]
  counter++
}