Question

所以我拥有的是，我有20个问题和5个问题的答案，我想要实现的是获得唯一的答案，将有

" a , b , c, d, e "

为每个问题选择。

每次用户进入测验时，所有问题和答案都将被独立加载。

我的主要问题是我无法获得独特的答案，
例如，问题1

What is the day

我最终得到了同样的答案

a )  monday   b) tuesday c) monday d)thursday e) saturday.....

我无法加载不同的单一答案..

怎么可能，我尝试拼接数组，但它只会让事情搞砸。

Answer 1

你可以这样做......

var anwers:Array = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"];
var selectedAnswers:Array = new Array(5);       // array for selected answers
var tmp:Number = Math.floor(Math.random*5);
var correct:String  = answers[0];               // let "Monday" be the correct answer
selectedAnswers[tmp] = correct;                 // correct answer set to a random position 

for(var i:Number=0; i<5; i++){
    tmp=Math.floor(Math.random*5);
    if(selectedAnswers[i].equals(correct)) continue;  //skip  for the correct answer
    if(selectedAnswers.indexOf(answers[tmp])<0){      // set answer if not present already
        selectedAnswers[i] = answers[tmp];
    } else {
        i--;                                          // loop again if answer is set earlier
    }
}

以上将是完全随机的，但可能需要一些时间来选择最后的元素..

以下方法会非常快，但不是完全随机的

var anwers:Array = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday"];
var selectedAnswers:Array = new Array(5);       // array for selected answers
var tmp:Number = Math.floor(Math.random*5);
var correctIndex:Number = 0;                    // let "Monday" be the correct answer
var correct:String  = answers[correctIndex];                
selectedAnswers[tmp] = correct;                 // correct answer set to a random position 
var j:Number = correctIndex;                    // temporary index
var offset:Number = 2;                          // unique for this answer set
                                                // so that the answers won't overlap for 5 choices

for(var i:Number=0; i<4; i++){                  // not completely random (yet give random answers for specific cases)
    tmp++;      
    if(tmp==5) tmp = 0;
    j += offset;
    if(j>answers.length) j -= answers.length;
    selectedAnswers[tmp] = answers[j];
}

这会从随机索引开始从answers到selectedAnswers分配值;

嗨，我想用actionscript创建一个测验

1 个答案: