ios - 我的 .enabled 按钮 swift 代码有问题

Question

我在玩迷你问答游戏，一切正常。现在唯一的问题是当用户完成回答按钮仍然启用的问题时。

我创建了一个函数来禁用和启用 buttons 并且我的禁用 buttons 函数正在我的 UIButton 操作中工作，但在这种情况下不起作用，我不知道是我遗漏了什么还是我做错了什么。

PS:我是 swift 代码的新手这就是我所拥有的:

 private func pickingRandomQuestion() {
    if questions.count > 0  {
        questionNumber = random() % questions.count
        questionLabel.text = questions[questionNumber].Question 
        answerNumber = questions[questionNumber].Answer
        imgDisplay.image = questions[questionNumber].Img

        answerA.setTitle(questions[questionNumber].Answers[0], forState: .Normal)
        answerB.setTitle(questions[questionNumber].Answers[1], forState: .Normal)
        answerC.setTitle(questions[questionNumber].Answers[2], forState: .Normal)
        answerD.setTitle(questions[questionNumber].Answers[3], forState: .Normal)

        questions.removeAtIndex(questionNumber)
    } else {

        finishGame.hidden = false
        disableButtons()
        //Here is my problem 
        //NSLog("Done")
        //NSLog(String(finalScore))


    }
}

@IBAction func btnA(sender: UIButton) {
    unhide()
    disableButtons()
    if answerNumber == 1 {
        endLabel.text = "You are Right"
        finalScore+=1
    } else {
        endLabel.text = "You are Wrong"
    }
}
@IBAction func btnB(sender: UIButton) {
    unhide()
    disableButtons()
    if answerNumber == 2 {
        endLabel.text = "You got it"
        finalScore+=1
    } else {
        endLabel.text = "You are Wrong"
    }
}
@IBAction func btnC(sender: UIButton) {
    unhide()
    disableButtons()
    if answerNumber == 3 {
        endLabel.text = "You are Correct"
        finalScore+=1
    } else {
        endLabel.text = "You are Wrong"
    }
}
@IBAction func btnD(sender: UIButton) {
    unhide()
    disableButtons()
    if answerNumber == 4 {
        endLabel.text = "You are Right"
        finalScore+=1
    } else {
        endLabel.text = "You are Wrong"
    }
}
 @IBAction func nextQuestion(sender: UIButton) {
    pickingRandomQuestion()
    hide()
    enableButtons()
}

Answer 1

answerA.enabled = false

您的问题是禁用功能不起作用吗？