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156 lines
6.4 KiB
156 lines
6.4 KiB
1 month ago
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<!DOCTYPE html>
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<html lang="zh">
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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>学生名单</title>
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<link rel="stylesheet" href="styles.css">
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<link rel="preconnect" href="https://fonts.googleapis.com">
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<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
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<link href="https://fonts.googleapis.com/css2?family=Zhi+Mang+Xing&display=swap" rel="stylesheet">
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<style>
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.tooltip {
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display: none;
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position: absolute;
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background-color: #555;
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color: #fff;
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text-align: center;
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border-radius: 5px;
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padding: 5px;
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z-index: 1;
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}
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body {
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text-align: center;
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position: relative; /* 为绝对定位的子元素提供基准 */
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}
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/* 将按钮容器放在右上角 */
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.button-container {
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position: fixed;
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top: 20px;
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right: 20px;
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}
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/* 学生名单中按钮样式 */
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.button-container button {
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margin-left: 30px; /* 按钮之间留一点间隔 */
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}
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</style>
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</head>
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<body>
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<h1>学生名单</h1>
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<div id="studentList"></div>
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<div class="button-container">
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<button onclick="resetAllPoints()"style="background: none; border: none; padding: 0; cursor: pointer;">
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<img src="clearall-icon.svg" alt="一键清除所有积分" style="width: 50px; height: 50px;" />
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</button>
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<button onclick="goBack()"style="background: none; border: none; padding: 0; cursor: pointer;">
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<img src="back-icon.svg" alt="返回" style="width: 50px; height: 50px;" />
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</button>
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</div>
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<div class="tooltip" id="tooltip"></div>
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<div id="message" style="display:none; position:fixed; top:20px; left:50%; transform:translateX(-50%); background-color:rgba(0, 0, 0, 0.5); color:white; padding:10px; border-radius:5px; white-space:nowrap;">
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</div>
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<script>
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// 返回上一页
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function goBack() {
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window.history.back();
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}
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function showMessage(text) {
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const messageDiv = document.getElementById("message");
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messageDiv.textContent = text;
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messageDiv.style.display = "block"; // 显示消息
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setTimeout(() => {
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messageDiv.style.display = "none"; // 1秒后隐藏消息
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}, 1000);
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}
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// 加载学生名单
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function loadStudentList() {
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const students = JSON.parse(localStorage.getItem('students')) || [];
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const list = document.getElementById('studentList');
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list.innerHTML = '';
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if (students.length === 0) {
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list.innerHTML = '<div>尚未导入任何学生名单。</div>';
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return;
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}
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students.forEach((student, index) => {
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list.innerHTML += `
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<div>
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${student.id} - ${student.name} - 积分: ${student.points}
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<button
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data-tooltip="清除积分"
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onclick="clearStudentPoints(${index})"style="background: none; border: none; padding: 0; cursor: pointer;">
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<img src="clear-icon.svg" alt="清除" style="width: 40px; height: 40px;" />
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</button>
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<button
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data-tooltip="删除学生"
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onclick="deleteStudent(${index}) "style="background: none; border: none; padding: 0; cursor: pointer;">
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<img src="delete-icon.svg" alt="删除" style="width: 40px; height: 40px;" />
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</button>
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</div>`;
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});
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// 注册工具提示事件
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registerTooltipEvents();
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}
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function registerTooltipEvents() {
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const buttons = document.querySelectorAll('button[data-tooltip]');
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const tooltip = document.getElementById('tooltip');
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buttons.forEach(button => {
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button.addEventListener('mouseenter', function(event) {
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tooltip.textContent = button.getAttribute('data-tooltip');
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tooltip.style.display = 'block';
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tooltip.style.left = event.pageX + 'px';
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tooltip.style.top = (event.pageY + 20) + 'px'; // 鼠标下方略微偏移
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});
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button.addEventListener('mouseleave', function() {
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tooltip.style.display = 'none';
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});
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});
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}
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// 清除单个学生积分
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function clearStudentPoints(index) {
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const students = JSON.parse(localStorage.getItem('students')) || [];
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students[index].points = 0; // 清除该学生的积分
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localStorage.setItem('students', JSON.stringify(students)); // 更新本地存储
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loadStudentList(); // 重新加载学生列表
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showMessage("已清除该学生积分。");
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}
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// 删除单个学生
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function deleteStudent(index) {
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let students = JSON.parse(localStorage.getItem('students')) || [];
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students.splice(index, 1); // 删除该学生
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localStorage.setItem('students', JSON.stringify(students)); // 更新本地存储
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loadStudentList(); // 重新加载学生列表
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showMessage("已删除该学生。");
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}
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// 一键清除所有学生的积分
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function resetAllPoints() {
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let students = JSON.parse(localStorage.getItem('students')) || [];
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students.forEach(student => student.points = 0); // 清除所有学生的积分
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localStorage.setItem('students', JSON.stringify(students)); // 更新本地存储
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loadStudentList(); // 重新加载学生列表
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showMessage("所有学生的积分已清除。");
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}
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window.onload = loadStudentList; // 页面加载时调用
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</script>
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</body>
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</html>
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