按下按钮后，仅显示第1个句子

Question

当我第一次按下按钮时，标签显示＆＃34;谁是Arnold？＆＃34;

当我第二次按下BUTTON时，我想要＆＃34;凯文是谁？＆＃34;要显示在标签字段上，而不是＆＃34;谁是Arnold？＆＃34;

当我第三次按下按钮时，我想要＆＃34;谁是刘？＆＃34;要显示在标签字段上，而不是＆＃34;谁是凯文？＆＃34;

 @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++
}