Question

我正在制作一个测验应用程序，每次用户按下按钮1或按钮2时，变量＆＃34; currentQuestion＆＃34;和＆＃34; currentAnswer＆＃34;增加1，在字典中给出下一个问题。

除非我运行我的应用程序并使用标签测试计数器，否则当我选择正确的答案时，它有时会加倍。我花了很长时间试图解决这个问题，但我无法理解！

我也理解我的代码可能很糟糕，如何改进它的任何建议都会很棒！

由于

import UIKit

class ViewController: UIViewController {

// Program Outlets

@IBOutlet weak var questionLabel: UILabel!
@IBOutlet weak var button1: UIButton!
@IBOutlet weak var button2: UIButton!
@IBOutlet weak var countLabel: UILabel!
@IBOutlet weak var incorrectLabel: UILabel!

@IBOutlet weak var testLabel: UILabel!

// Program Variables

var questionStorage =

[
    "1" : "Red is a four letter word. True or False?" ,
    "2" : "Cat is a three letter word. True or False?",
    "3" : "Dog is a five letter word. True or False",
    "4" : "I Smell Like a wet noodle!",
    "5" : "The ultimate smell awaits"

]

// True = 1 & False = 0

var questionAnswers =

[

    "1" : "0",
    "2" : "1",
    "3" : "0",
    "4" : "1",
    "5" : "0"


]

var incorrectQuestions: [String] = []
var incorrectQuestionCount = 0
var questionCount = 1
var currentQuestion = 1
var currentAnswer = 1





// Program Functions

// Question Generation Function

func Questions() {


    var currentQuestionString = String(currentQuestion)
    var currentAnswerString = String(currentAnswer)


    // Question Selection Variables

    var question = questionStorage[currentQuestionString]
    var answer = questionAnswers[currentAnswerString]

    // Question Counter Variables


    //countLabel.text = currentQuestionString

    // Question Generation Code

    questionLabel.text = question
    countLabel.text = answer
    testLabel.text = currentAnswerString

}

// Check for quiz completion

func checkFinish() {
    if questionCount == 5 {
        questionLabel.text = "Test Finished"

    }
}


override func viewDidLoad() {
    super.viewDidLoad()
    // Do any additional setup after loading the view, typically from a       nib.

    // Button Setup

    button1.layer.cornerRadius = 30;
    button1.layer.borderWidth = 1
    button1.layer.borderColor = UIColor.blackColor().CGColor

    button2.layer.cornerRadius = 30;
    button2.layer.borderWidth = 1
    button2.layer.borderColor = UIColor.blackColor().CGColor

    // Begin Program

    Questions()
}



// True & False Button Actions

@IBAction func button1Press(sender: AnyObject) {

    if countLabel.text == "1" { // correct

        incorrectQuestions.append(questionLabel.text!)
        ++currentQuestion
        ++currentAnswer
        Questions()
        checkFinish()
        ++questionCount
        ++incorrectQuestionCount
    }

    if countLabel.text == "0" { // incorrect

        incorrectQuestions.append(questionLabel.text!)
        ++currentQuestion
        ++currentAnswer
        Questions()
        checkFinish()
        ++questionCount
        ++incorrectQuestionCount
    }
}

@IBAction func button2Press(sender: AnyObject) {

    if countLabel.text == "0" { // correct

        incorrectQuestions.append(questionLabel.text!)
        ++currentQuestion
        ++currentAnswer
        Questions()
        checkFinish()
        ++questionCount
        ++incorrectQuestionCount
    }
    if countLabel.text == "1" { // incorrect
        incorrectQuestions.append(questionLabel.text!)
        ++currentQuestion
        ++currentAnswer
        Questions()
        checkFinish()
        ++questionCount
        ++incorrectQuestionCount
    }
}





override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
    // Dispose of any resources that can be recreated.
}

}

Answer 1

在button1Press中，

之间

if countLabel.text == "1"

和

if countLabel.text == "0"

对Questions的调用可能会更改countLabel.text的值它设置为"0"，您将执行第二个条件以及第一个条件。

将if countLabel.text == "0"替换为

else

与button2Press同样如此。

为什么我的变量没有递增1

1 个答案: