使用 HTML + JavaScript 实现在线考试系统

在现代的在线教育平台中，在线考试系统是不可或缺的一部分。本文将通过一个完整的示例，演示如何使用 HTML、CSS 和 JavaScript 构建一个支持多种题型的在线考试系统。

效果演示

项目概述

本项目主要包含以下核心功能：

支持4种常见题型：单选题、多选题、判断题、填空题
答题卡导航功能
实时计时器
自动评分与结果反馈

页面结构与样式设计

创建 HTML 结构

<div class="container">
    <!-- 考试内容 -->
    <div class="exam-container">
        <!-- 标题和计时器 -->
        <div class="header">
            <h2>在线考试系统</h2>
            <div class="timer">剩余时间: <span id="time">30:00</span></div>
        </div>
        <!-- 题目 -->
        <div id="subject"></div>
        <!-- 导航按钮 -->
        <div class="navigation">
            <button id="prev-btn" disabled>上一题</button>
            <button id="next-btn">下一题</button>
            <button id="submit-btn" class="submit-btn">提交试卷</button>
        </div>
        <!-- 结果 -->
        <div id="result" class="result">
            <h2>考试结束</h2>
            <p>你的得分是: <span class="score" id="final-score">0</span> 分</p>
            <p id="result-message"></p>
        </div>
    </div>
    <!-- 答题卡 -->
    <div class="answer-sheet">
        <h3>答题卡</h3>
        <div class="answer-buttons" id="answer-buttons"></div>
    </div>
</div>

设计 CSS 样式

整体布局

body {
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}
.container {
    display: flex;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}
.exam-container {
    flex: 3;
    background-color: white;
    padding: 30px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    margin-right: 20px;
}
.answer-sheet {
    flex: 1;
    background-color: white;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    height: fit-content;
    position: sticky;
    top: 20px;
}

题目区域样式

.header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
}
.timer {
    font-weight: bold;
    color: #e74c3c;
}
.question {
    margin-bottom: 20px;
    padding: 15px;
    background-color: #f9f9f9;
    border-radius: 5px;
}
.question h3 {
    margin-top: 0;
    color: #2c3e50;
}
.question-type {
    display: inline-block;
    padding: 2px 8px;
    background-color: #3498db;
    color: white;
    border-radius: 4px;
    font-size: 12px;
    margin-left: 10px;
}
.options {
    margin-left: 20px;
}
.option {
    margin: 10px 0;
    padding: 8px;
    cursor: pointer;
    border-radius: 4px;
}
.option:hover {
    background-color: #eee;
}
.option.selected {
    background-color: #3498db;
    color: white;
}
.option.multi-selected {
    background-color: #9b59b6;
    color: white;
}
.true-false-options {
    display: flex;
    gap: 20px;
}
.true-false-option {
    padding: 10px 20px;
    border: 1px solid #ddd;
    border-radius: 5px;
    cursor: pointer;
}
.true-false-option.selected {
    background-color: #3498db;
    color: white;
    border-color: #3498db;
}
.fill-blank-input {
    width: 100%;
    padding: 8px;
    margin-top: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
}
.navigation {
    display: flex;
    justify-content: space-between;
    margin-top: 30px;
}
button {
    padding: 10px 20px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
}
button:hover {
    background-color: #2980b9;
}
button:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
}
.submit-btn {
    background-color: #2ecc71;
}
.submit-btn:hover {
    background-color: #27ae60;
}
.result {
    display: none;
    text-align: center;
    padding: 20px;
}
.score {
    font-size: 24px;
    font-weight: bold;
    color: #2ecc71;
}

答题卡样式

.answer-sheet h3 {
    margin-top: 0;
    padding-bottom: 10px;
    border-bottom: 1px solid #eee;
    text-align: center;
}
.answer-buttons {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}
.answer-btn {
    width: 100%;
    aspect-ratio: 1;
    border: 1px solid #ddd;
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: bold;
    background-color: white;
}
.answer-btn:hover {
    background-color: #f0f0f0;
}
.answer-btn.current {
    border: 2px solid #3498db;
    color: #3498db;
}
.answer-btn.answered {
    background-color: #3498db;
    color: white;
    border-color: #3498db;
}
.answer-btn.unanswered {
    background-color: #f1f1f1;
    color: #999;
}

核心功能实现

定义基础数据

// 题型常量
const QUESTION_TYPES = {
    SINGLE_CHOICE: 'single-choice',
    MULTI_CHOICE: 'multi-choice',
    TRUE_FALSE: 'true-false',
    FILL_BLANK: 'fill-blank'
};

// 考试数据
const examData = {
    title: "JavaScript综合测试",
    timeLimit: 30 * 60, // 30分钟，以秒为单位
    questions: [
        {
            type: QUESTION_TYPES.SINGLE_CHOICE,
            question: "JavaScript是什么类型的语言?",
            options: ["编译型", "解释型", "混合型", "标记型"],
            answer: 1,
            score: 10
        },
        {
            type: QUESTION_TYPES.MULTI_CHOICE,
            question: "以下哪些是JavaScript的数据类型?(多选)",
            options: ["String", "Boolean", "Number", "Float", "Object"],
            answer: [0, 1, 2, 4],
            score: 15
        },
        // ...
    ]
};

生成答题卡

function createAnswerSheet() {
    answerButtonsContainer.innerHTML = '';

    examData.questions.forEach((_, index) => {
        const btn = document.createElement('button');
        btn.className = 'answer-btn unanswered';
        btn.textContent = index + 1;
        btn.onclick = () => jumpToQuestion(index);

        answerButtonsContainer.appendChild(btn);
    });
}

渲染不同题型

function showQuestion() {
    const question = examData.questions[currentQuestion];
    const typeLabel = getTypeLabel(question.type);

    let html = `<div class="question">
<h3>题目 ${currentQuestion + 1}/${examData.questions.length}: ${question.question}
<span class="question-type">${typeLabel}</span>
</h3>
<div class="options">`;

    // 根据题型生成不同的HTML
    switch(question.type) {
        case QUESTION_TYPES.SINGLE_CHOICE:
            html += generateSingleChoiceHTML(question);
            break;
        case QUESTION_TYPES.MULTI_CHOICE:
            html += generateMultiChoiceHTML(question);
            break;
        case QUESTION_TYPES.TRUE_FALSE:
            html += generateTrueFalseHTML(question);
            break;
        case QUESTION_TYPES.FILL_BLANK:
            html += generateFillBlankHTML(question);
            break;
    }

    html += `</div></div>`;
    subjectContainer.innerHTML = html;

    // 更新导航按钮状态
    prevBtn.disabled = currentQuestion === 0;
    nextBtn.disabled = currentQuestion === examData.questions.length - 1;

    // 更新答题卡
    updateAnswerSheet();
}

跳转到指定题目

function jumpToQuestion(index) {
    currentQuestion = index;
    showQuestion();
}

更新答题卡状态

function updateAnswerSheet() {
    const buttons = answerButtonsContainer.querySelectorAll('.answer-btn');

    buttons.forEach((btn, index) => {
        btn.classList.remove('current', 'answered', 'unanswered');

        if (index === currentQuestion) {
            btn.classList.add('current');
        }
        if (userAnswers[index] === null || userAnswers[index] === '' || (Array.isArray(userAnswers[index]) && userAnswers[index].length === 0) ) {
            btn.classList.add('unanswered');
        } else {
            btn.classList.add('answered');
        }
    });
}

监听做题事件

事件名	事件
选择单选题选项	selectSingleChoice
选择多选题选项	toggleMultiChoice
选择判断题选项	selectTrueFalse
更新填空题答案	updateFillBlankAnswer

提交试卷

function submitExam() {
    clearInterval(timer);

    // 计算分数
    let score = 0;

    examData.questions.forEach((question, index) => {
        const userAnswer = userAnswers[index];
        let isCorrect = false;

        switch(question.type) {
            case QUESTION_TYPES.SINGLE_CHOICE:
                isCorrect = userAnswer === question.answer;
                break;
            case QUESTION_TYPES.MULTI_CHOICE:
                if (Array.isArray(userAnswer)) {
                    // 检查答案数组是否完全相同
                    const userSorted = [...userAnswer].sort();
                    const answerSorted = [...question.answer].sort();
                    isCorrect = JSON.stringify(userSorted) === JSON.stringify(answerSorted);
                }
                break;
            case QUESTION_TYPES.TRUE_FALSE:
                isCorrect = userAnswer === question.answer;
                break;
            case QUESTION_TYPES.FILL_BLANK:
                isCorrect = userAnswer && userAnswer.toString().toLowerCase() === question.answer.toLowerCase();
                break;
        }

        if (isCorrect) {
            score += question.score;
        }
    });

    // 显示结果
    document.getElementById('subject').style.display = 'none';
    document.querySelector('.navigation').style.display = 'none';
    resultDiv.style.display = 'block';
    finalScore.textContent = score;

    // 根据分数显示不同消息
    const totalScore = examData.questions.reduce((sum, q) => sum + q.score, 0);
    const percentage = (score / totalScore) * 100;

    if (percentage >= 80) {
        resultMessage.textContent = "优秀！你掌握了大部分知识点。";
    } else if (percentage >= 60) {
        resultMessage.textContent = "良好！继续努力，你可以做得更好。";
    } else if (percentage >= 40) {
        resultMessage.textContent = "及格！建议复习相关知识点。";
    } else {
        resultMessage.textContent = "不及格！需要加强学习。";
    }
}

扩展建议

防切屏功能
倒计时功能优化
实现错题回顾功能
添加用户登录与成绩保存功能
集成后端进行数据持久化

完整代码

<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>在线考试系统 - 多题型版</title>
    <style>
        body {
            margin: 0;
            padding: 0;
            background-color: #f5f5f5;
        }
        .container {
            display: flex;
            max-width: 1200px;
            margin: 0 auto;
            padding: 20px;
        }
        .exam-container {
            flex: 3;
            background-color: white;
            padding: 30px;
            border-radius: 10px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
            margin-right: 20px;
        }
        .answer-sheet {
            flex: 1;
            background-color: white;
            padding: 20px;
            border-radius: 10px;
            box-shadow: 0 0 10px rgba(0,0,0,0.1);
            height: fit-content;
            position: sticky;
            top: 20px;
        }

        .header {
            display: flex;
            justify-content: space-between;
            margin-bottom: 20px;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
        }
        .timer {
            font-weight: bold;
            color: #e74c3c;
        }
        .question {
            margin-bottom: 20px;
            padding: 15px;
            background-color: #f9f9f9;
            border-radius: 5px;
        }
        .question h3 {
            margin-top: 0;
            color: #2c3e50;
        }
        .question-type {
            display: inline-block;
            padding: 2px 8px;
            background-color: #3498db;
            color: white;
            border-radius: 4px;
            font-size: 12px;
            margin-left: 10px;
        }
        .options {
            margin-left: 20px;
        }
        .option {
            margin: 10px 0;
            padding: 8px;
            cursor: pointer;
            border-radius: 4px;
        }
        .option:hover {
            background-color: #eee;
        }
        .option.selected {
            background-color: #3498db;
            color: white;
        }
        .option.multi-selected {
            background-color: #9b59b6;
            color: white;
        }
        .true-false-options {
            display: flex;
            gap: 20px;
        }
        .true-false-option {
            padding: 10px 20px;
            border: 1px solid #ddd;
            border-radius: 5px;
            cursor: pointer;
        }
        .true-false-option.selected {
            background-color: #3498db;
            color: white;
            border-color: #3498db;
        }
        .fill-blank-input {
            width: 100%;
            padding: 8px;
            margin-top: 10px;
            border: 1px solid #ddd;
            border-radius: 4px;
            font-size: 16px;
        }
        .navigation {
            display: flex;
            justify-content: space-between;
            margin-top: 30px;
        }
        button {
            padding: 10px 20px;
            background-color: #3498db;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            font-size: 16px;
        }
        button:hover {
            background-color: #2980b9;
        }
        button:disabled {
            background-color: #95a5a6;
            cursor: not-allowed;
        }
        .submit-btn {
            background-color: #2ecc71;
        }
        .submit-btn:hover {
            background-color: #27ae60;
        }
        .result {
            display: none;
            text-align: center;
            padding: 20px;
        }
        .score {
            font-size: 24px;
            font-weight: bold;
            color: #2ecc71;
        }

        .answer-sheet h3 {
            margin-top: 0;
            padding-bottom: 10px;
            border-bottom: 1px solid #eee;
            text-align: center;
        }
        .answer-buttons {
            display: grid;
            grid-template-columns: repeat(5, 1fr);
            gap: 10px;
        }
        .answer-btn {
            width: 100%;
            aspect-ratio: 1;
            border: 1px solid #ddd;
            border-radius: 5px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-weight: bold;
            background-color: white;
        }
        .answer-btn:hover {
            background-color: #f0f0f0;
        }
        .answer-btn.current {
            border: 2px solid #3498db;
            color: #3498db;
        }
        .answer-btn.answered {
            background-color: #3498db;
            color: white;
            border-color: #3498db;
        }
        .answer-btn.unanswered {
            background-color: #f1f1f1;
            color: #999;
        }
    </style>
</head>
<body>
<div class="container">
    <!-- 考试内容 -->
    <div class="exam-container">
        <!-- 标题和计时器 -->
        <div class="header">
            <h2>在线考试系统</h2>
            <div class="timer">剩余时间: <span id="time">30:00</span></div>
        </div>

        <!-- 题目 -->
        <div id="subject"></div>

        <!-- 导航按钮 -->
        <div class="navigation">
            <button id="prev-btn" disabled>上一题</button>
            <button id="next-btn">下一题</button>
            <button id="submit-btn" class="submit-btn">提交试卷</button>
        </div>

        <!-- 结果 -->
        <div id="result" class="result">
            <h2>考试结束</h2>
            <p>你的得分是: <span class="score" id="final-score">0</span> 分</p>
            <p id="result-message"></p>
        </div>
    </div>

    <!-- 答题卡 -->
    <div class="answer-sheet">
        <h3>答题卡</h3>
        <div class="answer-buttons" id="answer-buttons"></div>
    </div>
</div>

<script>
    // 题型常量
    const QUESTION_TYPES = {
        SINGLE_CHOICE: 'single-choice',
        MULTI_CHOICE: 'multi-choice',
        TRUE_FALSE: 'true-false',
        FILL_BLANK: 'fill-blank'
    };

    // 考试数据
    const examData = {
        title: "JavaScript综合测试",
        timeLimit: 30 * 60, // 30分钟，以秒为单位
        questions: [
            {
                type: QUESTION_TYPES.SINGLE_CHOICE,
                question: "JavaScript是什么类型的语言?",
                options: ["编译型", "解释型", "混合型", "标记型"],
                answer: 1,
                score: 10
            },
            {
                type: QUESTION_TYPES.MULTI_CHOICE,
                question: "以下哪些是JavaScript的数据类型?(多选)",
                options: ["String", "Boolean", "Number", "Float", "Object"],
                answer: [0, 1, 2, 4], // 多选的答案使用数组
                score: 15
            },
            {
                type: QUESTION_TYPES.TRUE_FALSE,
                question: "JavaScript和Java是同一种语言。",
                answer: false, // true或false
                score: 5
            },
            {
                type: QUESTION_TYPES.FILL_BLANK,
                question: "用于向数组末尾添加元素的方法是______。",
                answer: "push", // 填空题的答案
                score: 10
            },
            {
                type: QUESTION_TYPES.SINGLE_CHOICE,
                question: "哪个方法可以将字符串转换为整数?",
                options: ["parseInt()", "parseString()", "toInteger()", "stringToInt()"],
                answer: 0,
                score: 10
            },
            {
                type: QUESTION_TYPES.MULTI_CHOICE,
                question: "以下哪些是JavaScript的循环语句?(多选)",
                options: ["for", "while", "do...while", "repeat", "loop"],
                answer: [0, 1, 2],
                score: 15
            },
            {
                type: QUESTION_TYPES.TRUE_FALSE,
                question: "JavaScript中可以使用let和const声明变量。",
                answer: true,
                score: 5
            },
            {
                type: QUESTION_TYPES.FILL_BLANK,
                question: "用于检测变量类型的操作符是______。",
                answer: "typeof",
                score: 10
            }
        ]
    };

    // 全局变量
    let currentQuestion = 0;
    let userAnswers = Array(examData.questions.length).fill(null);
    let timeLeft = examData.timeLimit;
    let timer;

    // DOM元素
    const subjectContainer = document.getElementById('subject');
    const prevBtn = document.getElementById('prev-btn');
    const nextBtn = document.getElementById('next-btn');
    const submitBtn = document.getElementById('submit-btn');
    const timeDisplay = document.getElementById('time');
    const resultDiv = document.getElementById('result');
    const finalScore = document.getElementById('final-score');
    const resultMessage = document.getElementById('result-message');
    const answerButtonsContainer = document.getElementById('answer-buttons');

    // 初始化考试
    function initExam() {
        createAnswerSheet();
        showQuestion();
        startTimer();
    }

    // 创建答题卡
    function createAnswerSheet() {
        answerButtonsContainer.innerHTML = '';

        examData.questions.forEach((_, index) => {
            const btn = document.createElement('button');
            btn.className = 'answer-btn unanswered';
            btn.textContent = index + 1;
            btn.onclick = () => jumpToQuestion(index);

            answerButtonsContainer.appendChild(btn);
        });
    }

    // 更新答题卡状态
    function updateAnswerSheet() {
        const buttons = answerButtonsContainer.querySelectorAll('.answer-btn');

        buttons.forEach((btn, index) => {
            btn.classList.remove('current', 'answered', 'unanswered');

            if (index === currentQuestion) {
                btn.classList.add('current');
            }
            if (userAnswers[index] === null || userAnswers[index] === '' || (Array.isArray(userAnswers[index]) && userAnswers[index].length === 0) ) {
                btn.classList.add('unanswered');
            } else {
                btn.classList.add('answered');
            }
        });
    }

    // 跳转到指定题目
    function jumpToQuestion(index) {
        currentQuestion = index;
        showQuestion();
    }

    // 显示当前题目
    function showQuestion() {
        const question = examData.questions[currentQuestion];
        const typeLabel = getTypeLabel(question.type);

        let html = `<div class="question">
                    <h3>题目 ${currentQuestion + 1}/${examData.questions.length}: ${question.question}
                        <span class="question-type">${typeLabel}</span>
                    </h3>
                    <div class="options">`;

        // 根据题型生成不同的HTML
        switch(question.type) {
            case QUESTION_TYPES.SINGLE_CHOICE:
                html += generateSingleChoiceHTML(question);
                break;
            case QUESTION_TYPES.MULTI_CHOICE:
                html += generateMultiChoiceHTML(question);
                break;
            case QUESTION_TYPES.TRUE_FALSE:
                html += generateTrueFalseHTML(question);
                break;
            case QUESTION_TYPES.FILL_BLANK:
                html += generateFillBlankHTML(question);
                break;
        }

        html += `</div></div>`;
        subjectContainer.innerHTML = html;

        // 更新导航按钮状态
        prevBtn.disabled = currentQuestion === 0;
        nextBtn.disabled = currentQuestion === examData.questions.length - 1;

        // 更新答题卡
        updateAnswerSheet();
    }

    // 获取题型标签
    function getTypeLabel(type) {
        switch(type) {
            case QUESTION_TYPES.SINGLE_CHOICE: return '单选题';
            case QUESTION_TYPES.MULTI_CHOICE: return '多选题';
            case QUESTION_TYPES.TRUE_FALSE: return '判断题';
            case QUESTION_TYPES.FILL_BLANK: return '填空题';
            default: return '';
        }
    }

    // 生成单选题
    function generateSingleChoiceHTML(question) {
        let html = '';
        question.options.forEach((option, index) => {
            const isSelected = userAnswers[currentQuestion] === index;
            html += `<div class="option ${isSelected ? 'selected' : ''}" onclick="selectSingleChoice(${index})">
                        ${String.fromCharCode(65 + index)}. ${option}
                    </div>`;
        });
        return html;
    }

    // 生成多选题
    function generateMultiChoiceHTML(question) {
        let html = '';
        question.options.forEach((option, index) => {
            const isSelected = Array.isArray(userAnswers[currentQuestion]) && userAnswers[currentQuestion].includes(index);
            html += `<div class="option ${isSelected ? 'multi-selected' : ''}" onclick="toggleMultiChoice(${index})">
                        ${String.fromCharCode(65 + index)}. ${option}
                    </div>`;
        });
        return html;
    }

    // 生成判断题
    function generateTrueFalseHTML(question) {
        const userAnswer = userAnswers[currentQuestion];
        return `<div class="true-false-options">
                    <div class="true-false-option ${userAnswer === true ? 'selected' : ''}"
                         onclick="selectTrueFalse(true)">正确</div>
                    <div class="true-false-option ${userAnswer === false ? 'selected' : ''}"
                         onclick="selectTrueFalse(false)">错误</div>
                </div>`;
    }

    // 生成填空题
    function generateFillBlankHTML(question) {
        const userAnswer = userAnswers[currentQuestion] || '';
        return `<input type="text" class="fill-blank-input"
                       value="${userAnswer}"
                       oninput="updateFillBlankAnswer(this.value)"
                       placeholder="请输入答案">`;
    }

    // 选择单选题选项
    function selectSingleChoice(optionIndex) {
        userAnswers[currentQuestion] = optionIndex;
        showQuestion();
    }

    // 选择多选题选项
    function toggleMultiChoice(optionIndex) {
        if (!Array.isArray(userAnswers[currentQuestion])) {
            userAnswers[currentQuestion] = [];
        }

        const index = userAnswers[currentQuestion].indexOf(optionIndex);
        if (index === -1) {
            userAnswers[currentQuestion].push(optionIndex);
        } else {
            userAnswers[currentQuestion].splice(index, 1);
        }

        showQuestion();
    }

    // 选择判断题选项
    function selectTrueFalse(answer) {
        userAnswers[currentQuestion] = answer;
        showQuestion();
    }

    // 更新填空题答案
    function updateFillBlankAnswer(answer) {
        userAnswers[currentQuestion] = answer.trim();
        updateAnswerSheet();
    }

    // 上一题
    function prevQuestion() {
        if (currentQuestion > 0) {
            currentQuestion--;
            showQuestion();
        }
    }

    // 下一题
    function nextQuestion() {
        if (currentQuestion < examData.questions.length - 1) {
            currentQuestion++;
            showQuestion();
        }
    }

    // 开始计时器
    function startTimer() {
        updateTimerDisplay();
        timer = setInterval(() => {
            timeLeft--;
            updateTimerDisplay();

            if (timeLeft <= 0) {
                clearInterval(timer);
                submitExam();
            }
        }, 1000);
    }

    // 更新计时器显示
    function updateTimerDisplay() {
        const minutes = Math.floor(timeLeft / 60);
        const seconds = timeLeft % 60;
        timeDisplay.textContent = `${minutes}:${seconds < 10 ? '0' : ''}${seconds}`;
    }

    // 提交试卷
    function submitExam() {
        clearInterval(timer);

        // 计算分数
        let score = 0;

        examData.questions.forEach((question, index) => {
            const userAnswer = userAnswers[index];
            let isCorrect = false;

            switch(question.type) {
                case QUESTION_TYPES.SINGLE_CHOICE:
                    isCorrect = userAnswer === question.answer;
                    break;
                case QUESTION_TYPES.MULTI_CHOICE:
                    if (Array.isArray(userAnswer)) {
                        // 检查答案数组是否完全相同
                        const userSorted = [...userAnswer].sort();
                        const answerSorted = [...question.answer].sort();
                        isCorrect = JSON.stringify(userSorted) === JSON.stringify(answerSorted);
                    }
                    break;
                case QUESTION_TYPES.TRUE_FALSE:
                    isCorrect = userAnswer === question.answer;
                    break;
                case QUESTION_TYPES.FILL_BLANK:
                    isCorrect = userAnswer && userAnswer.toString().toLowerCase() === question.answer.toLowerCase();
                    break;
            }

            if (isCorrect) {
                score += question.score;
            }
        });

        // 显示结果
        document.getElementById('subject').style.display = 'none';
        document.querySelector('.navigation').style.display = 'none';
        resultDiv.style.display = 'block';
        finalScore.textContent = score;

        // 根据分数显示不同消息
        const totalScore = examData.questions.reduce((sum, q) => sum + q.score, 0);
        const percentage = (score / totalScore) * 100;

        if (percentage >= 80) {
            resultMessage.textContent = "优秀！你掌握了大部分知识点。";
        } else if (percentage >= 60) {
            resultMessage.textContent = "良好！继续努力，你可以做得更好。";
        } else if (percentage >= 40) {
            resultMessage.textContent = "及格！建议复习相关知识点。";
        } else {
            resultMessage.textContent = "不及格！需要加强学习。";
        }
    }

    // 事件监听
    prevBtn.addEventListener('click', prevQuestion);
    nextBtn.addEventListener('click', nextQuestion);
    submitBtn.addEventListener('click', () => {
        if (confirm("确定要提交试卷吗？提交后将无法修改答案。")) {
            submitExam();
        }
    });

    // 开始考试
    initExam();
</script>
</body>
</html>