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<!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>课堂管理系统</title>
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<style>
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body {
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font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
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background: linear-gradient(135deg, #283c86, #45a247); /* 深蓝到绿色的渐变 */
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height: 100vh;
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margin: 0;
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display: flex;
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justify-content: center;
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align-items: center;
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color: #ffffff;
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}
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.container {
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text-align: center;
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background: rgba(50, 50, 70, 0.9); /* 更深的背景色 */
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padding: 40px;
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border-radius: 20px;
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box-shadow: 0 15px 30px rgba(0, 0, 0, 0.5);
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border: 1px solid rgba(255, 255, 255, 0.2);
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backdrop-filter: blur(10px); /* 增加模糊效果 */
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}
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h1 {
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margin-bottom: 40px;
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font-size: 2.5em;
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text-shadow: 2px 2px 5px rgba(0, 0, 0, 0.5); /* 文字阴影 */
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}
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.button-group {
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display: flex;
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flex-direction: column;
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gap: 20px;
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}
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button {
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padding: 15px 30px;
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font-size: 1.2em;
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border: none;
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border-radius: 50px;
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background: linear-gradient(45deg, #6a82fb, #fc5c7d); /* 渐变按钮 */
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color: white;
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cursor: pointer;
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transition: transform 0.2s, background 0.3s, box-shadow 0.3s;
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box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
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}
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button:hover {
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background: linear-gradient(45deg, #5a72d6, #e54d84); /* 悬停时加深 */
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transform: translateY(-3px); /* 悬停时上移效果 */
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box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
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}
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@media (max-width: 600px) {
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.button-group {
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flex-direction: column;
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}
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}
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</style>
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</head>
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<body>
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<div class="container">
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<h1>2024K班课堂管理系统</h1>
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<div class="button-group">
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<button onclick="window.location.href='dianming.html'">课堂点名</button>
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<button onclick="window.location.href='select.html'">随机提问</button>
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<button onclick="window.location.href='score_display.html'">积分排名</button>
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<button onclick="document.getElementById('fileInput').click()">导入学生名单</button>
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<input type="file" id="fileInput" accept=".xlsx" style="display:none;" onchange="importStudents(event)">
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<button onclick="downloadScores()">导出学生成绩</button>
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</div>
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</div>
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<script>
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function downloadScores() {
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window.location.href = '/api/export-scores';
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}
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async function importStudents() {
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const fileInput = document.getElementById('fileInput');
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const file = fileInput.files[0]; // 获取选中的文件
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if (!file) {
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alert('请选择一个文件');
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return;
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}
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const formData = new FormData();
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formData.append('file', file); // 将文件添加到FormData中，键名为'file'
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try {
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const response = await fetch('/api/upload', { // 假设后端API的路径为/api/upload
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method: 'POST',
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body: formData
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});
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if (response.ok) {
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const result = await response.json();
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console.log('上传成功:', result);
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alert('学生名单导入成功！');
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} else {
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console.error('上传失败:', response.statusText);
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alert('导入失败，请重试。');
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}
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} catch (error) {
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console.error('请求错误:', error);
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alert('发生错误，请检查控制台了解详细信息。');
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}
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}
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</script>
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</body>
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</html>
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