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javascript - js implementiert das Klicken auf die vorherige und die nächste Frage, um die entsprechenden Fragen anzuzeigen, und auf die erste und die letzte Frage, um den Inhalt der Schaltfläche zu ändern.

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淡淡烟草味淡淡烟草味2755 Tage vor3619

Antworte allen(3)Ich werde antworten

  • 大家讲道理

    大家讲道理2017-06-12 09:28:19

    1.如果数据是死的,静态的,可以使用路由功能。只是这个方法比较笨,上一题和下一题标签要出现在每个页面上。
    2.如果数据是后台获取的,那就简单了,中间那一部分用路由,把id当作传递参数,每点击一次下一题,id+1

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  • 为情所困

    为情所困2017-06-12 09:28:19

    熟练地使用ajax之后这种问题可能就简单了

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  • 女神的闺蜜爱上我

    女神的闺蜜爱上我2017-06-12 09:28:19

    你可以参考一下这个
    希望能给你带来思路

    <!DOCTYPE html>
    <html>
    <head>
        <meta charset="utf-8">
        <title>测验表2</title>
        <style type="text/css">
            @import url(https://fonts.googleapis.com/css?family=Work+Sans:300,600);
    
            body{
                font-size: 20px;
                font-family: 'Work Sans', sans-serif;
                color: #333;
              font-weight: 300;
              text-align: center;
              background-color: #f8f6f0;
            }
            h1{
              font-weight: 300;
              margin: 0px;
              padding: 10px;
              font-size: 16px;
              background-color: #444;
              color: #fff;
            }
            .question{
              font-size: 30px;
              margin-bottom: 10px;
            }
            .answers {
              margin-bottom: 20px;
              text-align: left;
              display: inline-block;
            }
            .answers label{
              display: block;
              margin-bottom: 10px;
            }
            button{
              font-family: 'Work Sans', sans-serif;
                font-size: 16px;
                background-color: #279;
                color: #fff;
                border: 0px;
                border-radius: 3px;
                padding: 10px;
                cursor: pointer;
                margin-bottom: 20px;
                margin-top: 20px;
            }
            button:hover{
                background-color: #38a;
            }
            .slide{
              position: absolute;
              left: 0px;
              top: 0px;
              width: 100%;
              z-index: 1;
              opacity: 0;
              transition: opacity 0.5s;
            }
            .active-slide{
              opacity: 1;
              z-index: 2;
            }
            .quiz-container{
              position: relative;
              height: 200px;
              margin-top: 40px;
            }
        </style>
    </head>
    <body>
        <h1>测试表</h1>
        <p class="quiz-container">
          <p id="quiz"></p>
        </p>
        <button id="previous">前一题</button>
        <button id="next">下一题</button>
        <button id="submit">提交</button>
        <p id="results"></p>
        <script type="text/javascript">
            (function() {
              const myQuestions = [
                {
                  question: "“大煮干丝”是哪个菜系的代表菜之一( )。",
                  answers: {
                    A: "四川菜系",
                    B: "山东菜系",
                    C: "广东菜系",
                    D: "淮扬菜系"
                  },
                  correctAnswer: "D"
                },
                {
                  question: "红茶属于( )茶。",
                  answers: {
                    A: "半发酵",
                    B: "发酵",
                    C: "不发酵",
                    D: "微发酵"
                  },
                  correctAnswer: "A"
                },
                {
                  question: "满汉全席起兴于( )。",
                  answers: {
                    A: "清代",
                    B: "唐代",
                    C: "宋代",
                    D: "两汉"
                  },
                  correctAnswer: "A"
                }
              ];
    
              function buildQuiz() {
                // we'll need a place to store the HTML output
                const output = [];
    
                // for each question...
                myQuestions.forEach((currentQuestion, questionNumber) => {
                  // we'll want to store the list of answer choices
                  const answers = [];
    
                  // and for each available answer...
                  for (letter in currentQuestion.answers) {
                    // ...add an HTML radio button
                    answers.push(
                      `<label>
                         <input type="radio" name="question${questionNumber}" value="${letter}">
                          ${letter} :
                          ${currentQuestion.answers[letter]}
                       </label>`
                    );
                  }
    
                  // add this question and its answers to the output
                  output.push(
                    `<p class="slide">
                       <p class="question"> ${currentQuestion.question} </p>
                       <p class="answers"> ${answers.join("")} </p>
                     </p>`
                  );
                });
    
                // finally combine our output list into one string of HTML and put it on the page
                quizContainer.innerHTML = output.join("");
              }
    
              function showResults() {
                // gather answer containers from our quiz
                const answerContainers = quizContainer.querySelectorAll(".answers");
    
                // keep track of user's answers
                let numCorrect = 0;
    
                // for each question...
                myQuestions.forEach((currentQuestion, questionNumber) => {
                  // find selected answer
                  const answerContainer = answerContainers[questionNumber];
                  const selector = `input[name=question${questionNumber}]:checked`;
                  const userAnswer = (answerContainer.querySelector(selector) || {}).value;
    
                  // if answer is correct
                  if (userAnswer === currentQuestion.correctAnswer) {
                    // add to the number of correct answers
                    numCorrect++;
    
                    // color the answers green
                    answerContainers[questionNumber].style.color = "lightgreen";
                  } else {
                    // if answer is wrong or blank
                    // color the answers red
                    answerContainers[questionNumber].style.color = "red";
                  }
                });
    
                // show number of correct answers out of total
                resultsContainer.innerHTML = `你答对了${myQuestions.length}中的${numCorrect}`;
              }
    
              function showSlide(n) {
                slides[currentSlide].classList.remove("active-slide");
                slides[n].classList.add("active-slide");
                currentSlide = n;
                
                if (currentSlide === 0) {
                  previousButton.style.display = "none";
                } else {
                  previousButton.style.display = "inline-block";
                }
                
                if (currentSlide === slides.length - 1) {
                  nextButton.style.display = "none";
                  submitButton.style.display = "inline-block";
                } else {
                  nextButton.style.display = "inline-block";
                  submitButton.style.display = "none";
                }
              }
    
              function showNextSlide() {
                showSlide(currentSlide + 1);
              }
    
              function showPreviousSlide() {
                showSlide(currentSlide - 1);
              }
    
              const quizContainer = document.getElementById("quiz");
              const resultsContainer = document.getElementById("results");
              const submitButton = document.getElementById("submit");
    
              // display quiz right away
              buildQuiz();
    
              const previousButton = document.getElementById("previous");
              const nextButton = document.getElementById("next");
              const slides = document.querySelectorAll(".slide");
              let currentSlide = 0;
    
              showSlide(0);
    
              // on submit, show results
              submitButton.addEventListener("click", showResults);
              previousButton.addEventListener("click", showPreviousSlide);
              nextButton.addEventListener("click", showNextSlide);
            })();
        </script>
    </body>
    </html>

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