Actionscript 3.随机单选按钮值和标签

Question

所以我有窗口在哪里有问题和2个单选按钮。在AS3中，我添加了答案标签和值。它看起来像是：

       function myAnswers(e:MouseEvent):void {
            answer.rb1.label = "Answer 1"; // This answer should be always CORRECT
            answer.rb2.label = "Answer 2"; // This answer should be always INCORRECT

            answer.rb1.value = "TRUE"; // Here I set for rb1 value "TRUE"
            answer.rb2.value = "FALSE"; // Here I set for rb2 value "FALSE"
        }

我如何随机化这些答案并始终将答案1保留为TRUE值？

我的意思是如果我设置为rb1 label =“Answer 1”我需要设置为rb1 value =“TRUE”。

Answer 1

您可以使用Math.random()方法确定rb1或rb2是否应包含“正确”答案：

function myAnswers(e:MouseEvent):void {
    // First, we decide whether rb1 or rb2 should be the "correct" radio button
    var correctRadio:RadioButton = Math.random() > .5 ? answer.rb1 : answer.rb2;
    // Then, we set incorrectRadio to the opposite of correct radio
    var inccorrectRadio:RadioButton = correctRadio == answer.rb1 ? answer.rb2 : answer.rb1;

    // Finally, we set the labels and values on the "correct" and "incorrect" radio buttons
    correctRadio.label = "Answer 1"; // This answer should be always CORRECT
    inccorrectRadio.label = "Answer 2"; // This answer should be always INCORRECT

    correctRadio.value = "TRUE"; // Here I set the correct radio value "TRUE"
    inccorrectRadio.value = "FALSE"; // Here I set the incorrect radio value "FALSE"
}