Question

使用此代码，我希望能够使用相同的代码分离问卷，只需要不同的正确答案。

正如您所看到的，我刚尝试在代码阵列上添加另一个答案以进行不同的测验，但它无法识别答案（测试）。这样做的最佳方式是什么？有人告诉我你可以使用传递参数来添加不同的数组吗？

以下是我的全部代码：

// Insert number of questions
var numQues = 4;

// Insert number of choices in each question
var numChoi = 3;

// Insert number of questions displayed in answer area
var answers = new Array(4);


// Insert answers to questions
answers[0] = "Apple", "Test" ;
answers[1] = "Dynamic HTML";
answers[2] = "Netscape";
answers[3] = "Common Gateway Interface";

// Do not change anything below here ...
function getScore(form) {
var score = 0;
var currElt;
var currSelection;
for (i=0; i<numQues; i++) {
currElt = i*numChoi;
for (j=0; j<numChoi; j++) {
  currSelection = form.elements[currElt + j];
  if (currSelection.checked) {
    if (currSelection.value == answers[i]) {
      score++;
      break;
    }
  }
 }
}
score = Math.round(score/numQues*100);
form.percentage.value = score + "%";
var correctAnswers = "";
for (i=1; i<=numQues; i++) {
correctAnswers += i + ". " + answers[i-1] + "\r\n";
}
form.solutions.value = correctAnswers;
} 
//  End -->

Answer 1

那是因为：

answers[0] = "Apple", "Test" ;
                          ^ just a string literal

answers[0]只有Apple作为其值。

你应该这样做：

answers[0] = "Test";我想。

Answer 2

如果我理解你在寻找什么，有几种方法你可以做到这一点。一种方法是为每个测验存储一个答案数组，并在封装数组中枚举每个测验：

var quizKey = [
    ["Apple", "Dynamic HTML", "Netscape", "Common Gateway Interface"]
    ["Quiz2Answer1", "Quiz2Answer2", "Quiz2Answer3", "Quiz2Answer4"]
    ["Quiz3Answer1", "Quiz3Answer2", "Quiz3Answer3", "Quiz3Answer4"]
];

现在，您的第一个测验的答案数组将在quizKey[0]，您的第二个测验的答案数组将在quizKey[1]，而您的第三个测验的答案数组将在quizKey[2]中}。您可以轻松地动态添加更多答案：

var newSetOfAnswers = ["foo", "bar", "baz", "gaz"];
quizKey.push(newSetOfAnswers);

请务必跟上枚举。

在我看来，一个更好的方法是命名测验，这样你就不会有太多麻烦试图跟踪测验的数量，你可以将你的密钥存储在地图中：

var quizKey = {
    "quiz" : ["Apple", "Dynamic HTML", "Netscape", "Common Gateway Interface"]
    "text" : ["Quiz2Answer1", "Quiz2Answer2", "Quiz2Answer3", "Quiz2Answer4"]
    "exam" : ["Quiz3Answer1", "Quiz3Answer2", "Quiz3Answer3", "Quiz3Answer4"]
};

动态添加新的答案集非常容易，您还有机会为其命名：

var newSetOfAnswers = ["foo", "bar", "baz", "gaz"];
quizKey["excellentTest"] = newSetOfAnswers;

将传递参数添加到我的测验中

2 个答案: