How to add sub-questions and supplementary questions to the online answer questions

How to add sub-questions and supplementary questions in online answering questions requires specific code examples

In the online answering system, in order to meet the needs of complex questions, there are Sometimes it is necessary to add sub-topics and supplementary questions under a topic. This article explains how to use code to achieve this functionality. We will use JavaScript as an example to demonstrate.

In the question answering system, we can use an object to represent a question. The question object includes the basic information of the question, such as question content, options, answers, etc. It can also contain array attributes of sub-questions and supplementary questions.

First, define the constructor of a question object, the code is as follows:

function Question(content, options, answer) {
  this.content = content;
  this.options = options;
  this.answer = answer;
  this.subQuestions = []; // 子题数组
  this.supplementQuestions = []; // 补充题数组
}

Next, we need to add methods to add sub-questions and supplementary questions. We define the addSubQuestion and addSupplementQuestion methods respectively. The code is as follows:

Question.prototype.addSubQuestion = function(subQuestion) {
  this.subQuestions.push(subQuestion);
}

Question.prototype.addSupplementQuestion = function(supplementQuestion) {
  this.supplementQuestions.push(supplementQuestion);
}

Now, we can create a question object and add sub-questions and supplementary questions. The code example is as follows:

var mainQuestion = new Question("主题目的内容", ["选项A", "选项B", "选项C"], "答案A");

var subQuestion1 = new Question("子题目1的内容", ["选项A", "选项B"], "答案B");
var subQuestion2 = new Question("子题目2的内容", ["选项C"], "答案C");

mainQuestion.addSubQuestion(subQuestion1);
mainQuestion.addSubQuestion(subQuestion2);

var supplementQuestion1 = new Question("补充题目1的内容", ["选项A", "选项B", "选项C"], "答案B");
var supplementQuestion2 = new Question("补充题目2的内容", ["选项C"], "答案C");

mainQuestion.addSupplementQuestion(supplementQuestion1);
mainQuestion.addSupplementQuestion(supplementQuestion2);

Through the above code, we successfully created a topic containing sub-topics and supplementary questions, and added related sub-topics and supplementary questions.

In practical applications, these question objects can interact with the back-end database to store and retrieve data. At the same time, we can also render the page based on the properties of the question object to present the effect of complex questions.

To sum up, by defining the question object and its related methods, we can easily implement the sub-question and supplementary question functions in the online question answering system. Such code design is not only scalable, but also improves the readability and maintainability of the code.

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