我按下按钮后，只显示第一句话

Question

当我第一次按下按钮时，标签显示“谁是阿诺德？”

当我第二次按下按钮时，我会问“凯文是谁？”显示在标签栏中，而不是“谁是阿诺德？”

当我第三次按下按钮时，我会问“刘是谁？”显示在标签字段中，而不是"Who's Kevin?“

 @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])"
    } 
}

Answer 1

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++
}