329 lines
12 KiB
HTML
329 lines
12 KiB
HTML
<!DOCTYPE html>
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<html lang="zh-CN">
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<head>
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<meta charset="UTF-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Python流程图作业 - 学情分析看板</title>
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<script src="https://cdn.jsdelivr.net/npm/echarts@5.4.3/dist/echarts.min.js"></script>
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<script src="https://cdn.jsdelivr.net/npm/echarts-wordcloud@2.1.0/dist/echarts-wordcloud.min.js"></script>
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<style>
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:root {
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--bg-color: #f0f2f5;
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--card-bg: #ffffff;
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--primary: #1890ff;
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--text-main: #333;
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--text-secondary: #666;
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}
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body {
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font-family: 'Helvetica Neue', Helvetica, 'PingFang SC', 'Microsoft YaHei', Arial, sans-serif;
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background-color: var(--bg-color);
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margin: 0;
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padding: 20px;
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}
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.header {
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text-align: center;
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margin-bottom: 20px;
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}
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.header h1 { color: var(--text-main); margin: 0; }
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.header p { color: var(--text-secondary); margin-top: 5px; }
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/* 顶部概览卡片 */
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.overview-container {
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display: flex;
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justify-content: space-between;
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gap: 20px;
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margin-bottom: 20px;
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}
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.card {
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background: var(--card-bg);
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border-radius: 8px;
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padding: 20px;
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box-shadow: 0 2px 8px rgba(0,0,0,0.1);
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flex: 1;
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transition: transform 0.3s;
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}
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.card:hover { transform: translateY(-5px); }
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.stat-title { font-size: 14px; color: var(--text-secondary); }
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.stat-value { font-size: 28px; font-weight: bold; color: var(--text-main); margin-top: 10px; }
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.stat-sub { font-size: 12px; color: #52c41a; margin-top: 5px; }
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/* 图表布局 */
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.charts-grid {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 20px;
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margin-bottom: 20px;
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}
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.chart-box {
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background: var(--card-bg);
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border-radius: 8px;
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padding: 20px;
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box-shadow: 0 2px 8px rgba(0,0,0,0.1);
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height: 400px;
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}
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.chart-title {
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font-size: 16px;
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font-weight: bold;
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border-left: 4px solid var(--primary);
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padding-left: 10px;
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margin-bottom: 15px;
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}
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/* 学生列表 */
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.student-list {
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background: var(--card-bg);
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border-radius: 8px;
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padding: 20px;
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box-shadow: 0 2px 8px rgba(0,0,0,0.1);
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}
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table { width: 100%; border-collapse: collapse; }
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th, td { text-align: left; padding: 12px; border-bottom: 1px solid #eee; }
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th { background-color: #fafafa; color: var(--text-secondary); }
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.tag {
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padding: 4px 8px;
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border-radius: 4px;
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font-size: 12px;
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font-weight: bold;
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}
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.tag-S { background: #fff7e6; color: #fa8c16; }
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.tag-A { background: #e6f7ff; color: #1890ff; }
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.tag-B { background: #f6ffed; color: #52c41a; }
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.tag-C { background: #fff1f0; color: #f5222d; }
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</style>
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</head>
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<body>
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<div class="overview-container">
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<div class="card">
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<div class="stat-title">班级平均分</div>
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<div class="stat-value" id="avgScore">0</div>
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<div class="stat-sub">↑ 比上周For循环 +2.5分</div>
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</div>
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<div class="card">
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<div class="stat-title">S+A 级别（卓越+优秀）人数</div>
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<div class="stat-value" id="countA">0</div>
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<div class="stat-sub">占比 35.7%</div>
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</div>
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<div class="card">
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<div class="stat-title">未掌握核心难点</div>
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<div class="stat-value" style="color: #f5222d; font-size: 24px;">循环条件</div>
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<div class="stat-sub">需重点讲解 a<100 边界</div>
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</div>
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</div>
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<div class="charts-grid">
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<div class="chart-box">
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<div class="chart-title">作业评级分布</div>
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<div id="pieChart" style="width: 100%; height: 340px;"></div>
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</div>
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<div class="chart-box">
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<div class="chart-title">薄弱知识点词云 (AI分析)</div>
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<div id="wordCloud" style="width: 100%; height: 340px;"></div>
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</div>
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</div>
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<div class="charts-grid">
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<div class="chart-box" style="grid-column: span 2;">
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<div class="chart-title">全班分数段统计</div>
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<div id="barChart" style="width: 100%; height: 340px;"></div>
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</div>
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</div>
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<script>
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// --- 1. 模拟数据生成 (40位同学) ---
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const totalStudents = 40;
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const students = [];
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const familyNames = "赵钱孙李周吴郑王冯陈褚卫蒋沈韩杨";
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// 精确分配等级人数：S 10% (4人), A 15% (6人), B 50% (20人), C 15% (6人), D 10% (4人)
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const gradeDistribution = {
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S: 4, // 10% = 4人
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A: 6, // 15% = 6人
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B: 20, // 50% = 20人
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C: 6, // 15% = 6人
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D: 4 // 10% = 4人
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};
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let gradeCounts = { S: 0, A: 0, B: 0, C: 0, D: 0 };
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let totalScore = 0;
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// 创建等级数组，确保精确分配
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let levelQueue = [];
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for (let level in gradeDistribution) {
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for (let i = 0; i < gradeDistribution[level]; i++) {
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levelQueue.push(level);
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}
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}
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// 打乱顺序
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for (let i = levelQueue.length - 1; i > 0; i--) {
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const j = Math.floor(Math.random() * (i + 1));
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[levelQueue[i], levelQueue[j]] = [levelQueue[j], levelQueue[i]];
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}
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for (let i = 1; i <= totalStudents; i++) {
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let score;
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let level = levelQueue[i - 1];
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// 根据等级生成对应分数范围
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if (level === 'S') {
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// S级：95-100
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score = Math.floor(Math.random() * (100 - 95 + 1) + 95);
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} else if (level === 'A') {
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// A级：85-94
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score = Math.floor(Math.random() * (95 - 85) + 85);
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} else if (level === 'B') {
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// B级：70-84
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score = Math.floor(Math.random() * (85 - 70) + 70);
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} else if (level === 'C') {
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// C级：60-69
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score = Math.floor(Math.random() * (70 - 60) + 60);
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} else {
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// D级：50-59
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score = Math.floor(Math.random() * (60 - 50) + 50);
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}
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gradeCounts[level]++;
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totalScore += score;
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let comment = "";
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if (level === 'S') comment = "完美！逻辑清晰，变量初始化正确，闭环完美，代码规范。";
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else if (level === 'A') comment = "逻辑清晰，变量初始化正确，闭环完美。";
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else if (level === 'B') comment = "整体逻辑正确，但部分连线方向有误。";
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else if (level === 'C') comment = "循环条件判断错误，导致死循环或无法进入。";
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else comment = "基础概念理解不足，需要重新学习。";
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students.push({
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id: 2025000 + i,
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name: familyNames[i % familyNames.length] + "同学",
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score: score,
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level: level,
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comment: comment
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});
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}
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// --- 2. 填充顶部数据 ---
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document.getElementById('avgScore').innerText = (totalScore / totalStudents).toFixed(1);
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const excellentCount = gradeCounts.S + gradeCounts.A; // S级和A级合计
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document.getElementById('countA').innerText = excellentCount;
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// 更新占比显示
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const excellentPercent = ((excellentCount / totalStudents) * 100).toFixed(1);
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const countACard = document.getElementById('countA').parentElement;
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countACard.querySelector('.stat-sub').innerText = `占比 ${excellentPercent}%`;
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// --- 3. 初始化图表 ---
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// A. 饼图 - 等级分布
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const pieChart = echarts.init(document.getElementById('pieChart'));
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pieChart.setOption({
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tooltip: { trigger: 'item' },
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legend: { top: '5%', left: 'center' },
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color: ['#fa8c16', '#1890ff', '#52c41a', '#faad14', '#f5222d'],
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series: [{
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name: '评级占比',
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type: 'pie',
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radius: ['40%', '70%'],
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avoidLabelOverlap: false,
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itemStyle: { borderRadius: 10, borderColor: '#fff', borderWidth: 2 },
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label: { show: false, position: 'center' },
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emphasis: { label: { show: true, fontSize: 20, fontWeight: 'bold' } },
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data: [
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{ value: gradeCounts.S, name: 'S级 (卓越)' },
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{ value: gradeCounts.A, name: 'A级 (优秀)' },
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{ value: gradeCounts.B, name: 'B级 (良好)' },
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{ value: gradeCounts.C, name: 'C级 (待改进)' }
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]
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}]
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});
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// B. 词云图 - 知识点掌握情况
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// 这里重点突出“循环条件”
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const wordChart = echarts.init(document.getElementById('wordCloud'));
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wordChart.setOption({
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tooltip: {},
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series: [{
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type: 'wordCloud',
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gridSize: 2,
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sizeRange: [12, 60], // 字体大小范围
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rotationRange: [-45, 45],
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shape: 'circle',
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width: '100%',
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height: '100%',
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textStyle: {
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fontFamily: 'sans-serif',
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fontWeight: 'bold',
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color: function () {
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return 'rgb(' + [
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Math.round(Math.random() * 160),
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Math.round(Math.random() * 160),
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Math.round(Math.random() * 160)
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].join(',') + ')';
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}
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},
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data: [
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{ name: '循环条件', value: 150, textStyle: { color: 'red' } }, // 核心痛点
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{ name: '变量初始化', value: 80 },
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{ name: 'i=i+1', value: 70 },
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{ name: 'a<100', value: 65 },
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{ name: '死循环', value: 60 },
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{ name: '连线方向', value: 50 },
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{ name: '退出逻辑', value: 45 },
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{ name: 'While语法', value: 40 },
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{ name: 'Print缩进', value: 35 },
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{ name: 'Yes/No分支', value: 30 },
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{ name: '流程结束符', value: 25 },
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{ name: '变量定义', value: 20 }
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]
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}]
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});
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// C. 柱状图 - 分数段
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const barChart = echarts.init(document.getElementById('barChart'));
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// 简单的分段统计
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let ranges = { '90-100': 0, '80-89': 0, '70-79': 0, '60-69': 0, '<60': 0 };
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students.forEach(s => {
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if (s.score >= 90) ranges['90-100']++;
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else if (s.score >= 80) ranges['80-89']++;
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else if (s.score >= 70) ranges['70-79']++;
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else if (s.score >= 60) ranges['60-69']++;
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else ranges['<60']++;
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});
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barChart.setOption({
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tooltip: { trigger: 'axis', axisPointer: { type: 'shadow' } },
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grid: { left: '3%', right: '4%', bottom: '3%', containLabel: true },
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xAxis: { type: 'category', data: Object.keys(ranges) },
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yAxis: { type: 'value' },
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series: [{
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name: '人数',
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type: 'bar',
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barWidth: '50%',
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data: Object.values(ranges),
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itemStyle: {
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color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
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{ offset: 0, color: '#83bff6' },
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{ offset: 0.5, color: '#188df0' },
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{ offset: 1, color: '#188df0' }
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])
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}
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}]
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});
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// 窗口缩放适配
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window.addEventListener('resize', function() {
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pieChart.resize();
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wordChart.resize();
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barChart.resize();
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});
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</script>
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</body>
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</html> |