Arrays 如何在actionscript3中随机化测验问题？

我有一个flash的问答游戏；基本上你需要输入答案来回答4个问题。最后，它会显示分数和你的答案与正确答案的对比

我需要关于如何随机化问题的帮助（不要重复问题）

最后，正确答案需要与玩家回答问题的顺序相匹配

我把照片附在下面

代码：第1帧

stop();
var nQNumber:Number = 0;
var aQuestions:Array = new Array();
var aCorrectAnswers:Array = new Array("Jupiter", "Mars", "war", "Titan");
var aUserAnswers:Array = new Array();
aQuestions[0] = "What is the biggest planet in our solar system?";
aQuestions[1] = "Which planet in our solar system is the 4th planet from the 
sun?";
aQuestions[2] = "Mars is named after the Roman god of ___.";
aQuestions[3] = "What is the name of Saturn's largest moon?";
questions_txt.text = aQuestions[nQNumber];
submit_btn.addEventListener(MouseEvent.CLICK, quiz);
function quiz(e:MouseEvent):void{
aUserAnswers.push(answers_txt.text);
answers_txt.text = "";
nQNumber++;
if(nQNumber < aQuestions.length){
  questions_txt.text = aQuestions[nQNumber]}
else{
  nextFrame()}
}

stop（）；
变量nQNumber:Number=0；
var aQuestions:Array=new Array（）；
var aCorrectAnswers：数组=新数组（“木星”、“火星”、“战争”、“泰坦”）；
var aUserAnswers:Array=new Array（）；
问[0]=“我们太阳系中最大的行星是什么？”；
问[1]=“我们太阳系中的哪颗行星是地球上第四颗行星？”
太阳；
aQuestions[2]=“火星是以罗马的___;神命名的。”；
问[3]=“土星最大的卫星叫什么名字？”；
questions_txt.text=aQuestions[nQNumber]；
提交\u btn.addEventListener（MouseEvent.CLICK，测验）；
功能测验（e:MouseeEvent）：无效{
push（answers_txt.text）；
答案_txt.text=“”；
nQNumber++；
if（nQNumber

第2帧

var nScore:Number = 0;
for(var i:Number = 0; i < aQuestions.length; i++){
this["userAnswer" + i + "_txt"].text = aUserAnswers[i];
this["correctAnswer" + i + "_txt"].text = aCorrectAnswers[i];
if(aUserAnswers[i].toUpperCase() == aCorrectAnswers[i].toUpperCase()){
nScore++}
if(i == aQuestions.length - 1){
score_txt.text = nScore.toString()}}

var nScore:Number=0；
对于（变量i:Number=0；i

您正在寻找名为的漂亮功能吗？将Math.random（）的结果乘以所需的随机生成范围，将其四舍五入，然后使用数字在数组中选择一个随机问题。

是否正在查找名为的漂亮功能？将Math.random（）的结果乘以所需的随机生成范围，四舍五入，然后使用数字在数组中选择一个随机问题。

处理此问题的常用方法是创建一个数组来容纳需要提问的问题，将数组随机化，然后在询问时从数组中删除相应的问题。然后，当该数组为空时，转到重述屏幕

以下是实现此目标的多种方法之一：

首先，让我们通过使用对象而不是一大堆数组来简化这个过程。您的对象将具有所有相关信息的属性

//create an array that will hold all your questions
var questions:Array = [];

//add a new question object to the array, repeat for all questions
questions.push({
    question: "What is the biggest planet in our solar system?",
    correctAnswer: "Jupiter"
    userAnswer: null,
    correct: false
});

接下来，让我们将该数组随机化：

//sort the array with the sort function below
questions.sort(randomizeArray);

//this sorts in a random way
function randomizeArray(a,b):int {
    return(Math.random() > 0.5) ? 1: -1;
}

现在，让我们复制数组以跟踪哪些问题仍然需要提问

var askQuestions:Array = questions.concat(); //concat with no parameters returns a new shallow copy of the array
var curQuestion; //create a var to hold the current question

现在，创建一个函数来询问下一个问题：

function askNextQuestion():void {
    //check if there are any more questions to ask
    if(askQuestions.length > 0){

        //get the next question object
        curQuestion = askQuestions.shift(); //shift removes the first item of an array, and returns that item
        questions_txt.text = curQuestion.question;
        answers_txt.text = "";

    }else{
        //all questions have been asked, show your recap screen
        finish();
    }
}

单击“应答”按钮时，需要运行一个函数：

function submitAnswer(e:Event = null):void {
    //if there is a current question
    if(curQuestion){
        curQuestion.userAnswer = answers_txt.text;
        curQuestion.correct = curQuestion.correctAnswer.toUpperCase() == answers_txt.text.toUpperCase();
    }

    //ask the next question
    askNextQuestion();
}

以及一个在询问所有问题后运行的函数：

function finish():void {
    var score:int = 0;

    //go through the array and count how many are correct and recap
    for(var i:int=0; i<questions.length;i++){
        if(questions[i].correct) score++;
        trace("Question " + (i+1) + ":",questions[i].question); //arrays are 0 based, so we add 1 to the index (i) so that it says "Question 1:" for the first question instead of "Question 0:"
        trace("You answered:",questions[i].userAnswer);
        trace("Correct Answer:", questions[i].correctAnswer);
        trace(questions[i].correct ? "You were correct" : "You were wrong","\n"); //this is shorthand if statement,  \n is a line break
    }

    score_txt.text = score + " out of " + questions.length;
}

函数finish（）：void{
变量得分：int=0；
//检查数组，数一数有多少是正确的，然后重述一遍
对于（var i:int=0；i处理此问题的常用方法是创建一个数组来容纳需要提问的问题，将数组随机化，然后在提问时从数组中删除相应的问题。然后，当该数组为空时，转到重述屏幕

以下是实现此目标的多种方法之一：

首先，让我们通过使用对象而不是一大堆数组来简化这个过程。您的对象将具有所有相关信息的属性

//create an array that will hold all your questions
var questions:Array = [];

//add a new question object to the array, repeat for all questions
questions.push({
    question: "What is the biggest planet in our solar system?",
    correctAnswer: "Jupiter"
    userAnswer: null,
    correct: false
});

接下来，让我们将该数组随机化：

//sort the array with the sort function below
questions.sort(randomizeArray);

//this sorts in a random way
function randomizeArray(a,b):int {
    return(Math.random() > 0.5) ? 1: -1;
}

现在，让我们复制数组以跟踪哪些问题仍然需要提问

var askQuestions:Array = questions.concat(); //concat with no parameters returns a new shallow copy of the array
var curQuestion; //create a var to hold the current question

现在，创建一个函数来询问下一个问题：

function askNextQuestion():void {
    //check if there are any more questions to ask
    if(askQuestions.length > 0){

        //get the next question object
        curQuestion = askQuestions.shift(); //shift removes the first item of an array, and returns that item
        questions_txt.text = curQuestion.question;
        answers_txt.text = "";

    }else{
        //all questions have been asked, show your recap screen
        finish();
    }
}

单击“应答”按钮时，需要运行一个函数：

function submitAnswer(e:Event = null):void {
    //if there is a current question
    if(curQuestion){
        curQuestion.userAnswer = answers_txt.text;
        curQuestion.correct = curQuestion.correctAnswer.toUpperCase() == answers_txt.text.toUpperCase();
    }

    //ask the next question
    askNextQuestion();
}

以及一个在询问所有问题后运行的函数：

function finish():void {
    var score:int = 0;

    //go through the array and count how many are correct and recap
    for(var i:int=0; i<questions.length;i++){
        if(questions[i].correct) score++;
        trace("Question " + (i+1) + ":",questions[i].question); //arrays are 0 based, so we add 1 to the index (i) so that it says "Question 1:" for the first question instead of "Question 0:"
        trace("You answered:",questions[i].userAnswer);
        trace("Correct Answer:", questions[i].correctAnswer);
        trace(questions[i].correct ? "You were correct" : "You were wrong","\n"); //this is shorthand if statement,  \n is a line break
    }

    score_txt.text = score + " out of " + questions.length;
}

函数finish（）：void{
变量得分：int=0；
//检查数组，数一数有多少是正确的，然后重述一遍
对于（var i:int=0；i当我尝试此代码时，我得到以下错误类型error:error#1009:无法访问空对象引用的属性或方法。在Untitled#u Scene1#u fla:：main timeline/askNextQuestion（）在Untitled#u Scene1#fla:：main timeline/frame1（）什么是“q”假设是在问题中\u txt.text=q.question；而在q.correct in finish函数上？q是第一位的输入错误（应该是
curQuestion
，而不是
q
）。在我答案末尾的for each循环中，q代表循环当前迭代的问题对象（虽然我看到我忘了把
var
放在它前面了。）我更新了答案，修正了两个打字错误/错误。关于你问题中的新信息（自从我回答后）。
问题
数组的顺序将与询问的顺序相同。（将
问题更改为
问题后。弹出
到
问题。shift
）所以，当测验结束时，你可以重复每个问题来重述-我用traces做了一个例子（在AnimateCC/FlashProthanks中测试/运行它时在输出窗口中显示），它现在以我想要的方式工作，但我想知道为什么在trace上总是说“你是正确的”，即使答案是错误的“curQuestion.correct=curQuestion.userAnswer.toUpperCase（）==answers_txt.text.toUpperCase（）；”在submitAnswer函数中，当我这样做时，它每次都会说“你错了”。我调整了finish函数，使它在动态文本框中显示真实分数，但在trace中，它仍然会说“你错了”，因为我已经注释了”curQuestion.correct=curQuestion.userAnswer.toUpperCase（）==answers_txt.text.toUpperCase（）；”。只是一个输入错误，您应该将正确答案与文本框进行比较。正如我所写的，您正在将用户的答案与用户的答案进行比较（这总是正确的）我会更新答案并修正它。如果你觉得这个答案回答你的问题，考虑把它标记为“绿色检查”，以帮助未来的访问者快速地看到解决方案。它也会增加你（和我）的声誉。