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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>课堂点名系统</title>
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<script src="https://cdn.jsdelivr.net/npm/vue@2"></script>
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<script src="script.js"></script> <!-- 引入你的函数文件 -->
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<style>
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.filee
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{
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position: absolute; /* 绝对定位 */
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top: 22%;
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left: 6%;
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height: 30px; /* 设置高度 */
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}
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.container {
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display: grid; /* 使用 Grid 布局 */
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grid-template-columns: repeat(3, 1fr); /* 创建三列 */
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gap: 50px; /* 列间距 */
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justify-content: center; /* 水平居中 */
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align-items: center; /* 垂直居中 */
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justify-items: center; /* 水平均匀分布 */
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position: absolute; /* 设置为绝对定位 */
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top: 3%; /* 从顶部移动 */
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left: 50%; /* 从左边移动 */
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transform: translateX(-50%); /* 水平居中容器 */
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}
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.rcontainer {
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position: absolute; /* 绝对定位 */
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top: 30%;
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right: 20%;
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}
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.lcontainer {
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position: absolute; /* 绝对定位 */
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top: 30%;
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left: 20%;
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}
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.notinclass
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{
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position: absolute; /* 绝对定位 */
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border-radius: 15px;
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height: 50px;
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width: 110px;
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font-size: 17px;
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bottom: 25%; /* 距离顶部50% */
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left: 50%; /* 距离左侧50% */
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transform: translate(-50%, -50%);
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}
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.topstu {
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display: flex; /* 使用 Flexbox */
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justify-content: center; /* 水平居中 */
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align-items: center; /* 垂直居中 */
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width: 150px; /* 圆的宽度 */
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height: 150px; /* 圆的高度 */
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background-color: #ffffff; /* 圆的背景颜色 */
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border-radius: 50%; /* 使其变为圆形 */
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color: rgb(0, 0, 0); /* 文本颜色 */
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font-size: 20px; /* 文本大小 */
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text-align: center; /* 文本居中 */
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border: 4px solid #000000;
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}
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.pickbutton {
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position: absolute; /* 绝对定位 */
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bottom: 12%; /* 距离顶部50% */
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left: 50%; /* 距离左侧50% */
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transform: translate(-50%, -50%); /* 使按钮中心对齐 */
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padding: 25px 40px; /* 增加内边距 */
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font-size: 25px; /* 增加字体大小 */
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border-radius: 15px;
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width: 280px;
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height: 80px;
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justify-content: center; /* 水平居中 */
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}
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.rpointbutton
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{
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width: 120px; /* 设置宽度 */
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height: 120px; /* 设置高度，确保与宽度相等 */
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border-radius: 50%; /* 圆形 */
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font-size: 25px; /* 字体大小 */
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}
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.lpointbutton
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{
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width: 120px; /* 设置宽度 */
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height: 120px; /* 设置高度，确保与宽度相等 */
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border-radius: 50%; /* 圆形 */
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font-size: 25px; /* 字体大小 */
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}
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.small-button {
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position: absolute;
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width: 50px;
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height: 50px;
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background-color: #000000;
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color: white;
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border: none;
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border-radius: 50%;
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display: flex; /* 使用 flex 布局 */
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justify-content: center; /* 水平居中 */
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align-items: center; /* 垂直居中 */
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opacity: 0; /* 初始隐藏 */
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transition: transform 0.5s ease, opacity 0.5s ease;
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top: 50%;
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left: 50%;
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transform: translate(-50%, -50%);
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}
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.lsmall-button {
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position: absolute;
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width: 50px;
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height: 50px;
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background-color: #000000;
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color: white;
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border: none;
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border-radius: 50%;
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display: flex; /* 使用 flex 布局 */
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justify-content: center; /* 水平居中 */
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align-items: center; /* 垂直居中 */
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opacity: 0; /* 初始隐藏 */
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transition: transform 0.5s ease, opacity 0.5s ease;
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top: 50%;
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left: 50%;
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transform: translate(-50%, -50%);
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}
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.uploadbutton
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{
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position: absolute; /* 绝对定位 */
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top: 10%; /* 距离顶部50% */
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left: 10%; /* 距离左侧20px */
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width: 100px; /* 设置宽度 */
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height: 100px; /* 设置高度，确保与宽度相等 */
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border-radius: 50%; /* 圆形 */
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font-size: 25px; /* 字体大小 */
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}
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.pickedstu {
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position: absolute; /* 绝对定位 */
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top: 40%; /* 距离顶部50% */
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left: 50%; /* 距离左侧20px */
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width: 350px; /* 圆的宽度 */
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height: 350px; /* 圆的高度 */
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transform: translate(-50%, -50%);
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background-color: #ffffff; /* 圆的背景颜色 */
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border-radius: 50%; /* 使其变为圆形 */
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display: flex; /* 使用 Flexbox 对齐文本 */
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align-items: center; /* 垂直居中 */
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justify-content: center; /* 水平居中 */
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color: rgb(0, 0, 0); /* 文本颜色 */
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font-size: 30px; /* 文本大小 */
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text-align: center; /* 文本居中 */
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border: 4px solid #000000;
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}
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body {
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font-family: 'Arial', sans-serif;
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background-color: #f4f4f4;
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margin: 0;
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padding: 20px;
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display: flex;
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flex-direction: column;
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align-items: center;
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}
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input[type="file"] {
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margin-bottom: 10px;
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padding: 10px;
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border: 2px solid #007BFF;
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border-radius: 5px;
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width: 250px;
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}
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button {
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background-color: #020202;
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color: white;
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border: none;
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padding: 10px 20px;
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border-radius: 5px;
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cursor: pointer;
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margin: 5px;
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transition: background-color 0.3s;
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}
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button:hover {
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background-color: #0056b3;
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}
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#result {
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margin-top: 100px;
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padding: 10px;
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background: white;
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border: 1px solid #ddd;
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border-radius: 5px;
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width: 500px;
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text-align: center;
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box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
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}
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/* 调整每个小按钮的旋转角度以保持垂直 */
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.small-button:nth-child(1) { transform: translate(-50%, -50%) rotate(0deg); }
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.small-button:nth-child(2) { transform: translate(-50%, -50%) rotate(60deg); }
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.small-button:nth-child(3) { transform: translate(-50%, -50%) rotate(120deg); }
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.small-button:nth-child(4) { transform: translate(-50%, -50%) rotate(180deg); }
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.small-button:nth-child(5) { transform: translate(-50%, -50%) rotate(240deg); }
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.small-button:nth-child(6) { transform: translate(-50%, -50%) rotate(300deg); }
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.show .small-button {
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opacity: 1;
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}
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.show .lsmall-button {
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opacity: 1;
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}
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/* 添加展开效果并使文本保持竖直 */
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.show .small-button:nth-child(1) { transform: translate(-50%, -50%) rotate(0deg) translateX(100px); }
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.show .small-button:nth-child(2) { transform: translate(-50%, -50%) rotate(60deg) translateX(100px) rotate(-60deg); }
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.show .small-button:nth-child(3) { transform: translate(-50%, -50%) rotate(120deg) translateX(100px) rotate(-120deg); }
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.show .small-button:nth-child(4) { transform: translate(-50%, -50%) rotate(180deg) translateX(100px) rotate(-180deg); }
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.show .small-button:nth-child(5) { transform: translate(-50%, -50%) rotate(240deg) translateX(100px) rotate(-240deg); }
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.show .small-button:nth-child(6) { transform: translate(-50%, -50%) rotate(300deg) translateX(100px) rotate(-300deg); }
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</style>
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</head>
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<body>
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<canvas id="Mycanvas"></canvas>
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<div id="app">
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<div><button class="uploadbutton" @click="uploadFile">上传名单</button></div>
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<div class="pickedstu" id="picked"> 被抽中的同学</div>
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<div><button class = "notinclass" @click="uploadFile">未到课堂</button></div>
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<div><button class="pickbutton" @click="getRandomStudent">随机点名</button></div>
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<div><input type="file" class="filee" id="fileInput" /></div>
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<div class="rcontainer">
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<button class="rpointbutton" @click="rtoggleButtons">加分</button>
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<div class="small-buttons">
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<button class="small-button" @click="changepoints(1.5)">1.5</button>
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<button class="small-button" @click="changepoints(2.0)">2.0</button>
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<button class="small-button" @click="changepoints(2.5)">2.5</button>
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<button class="small-button" @click="changepoints(3.0)">3.0</button>
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<button class="small-button" @click="changepoints(0.5)">0.5</button>
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<button class="small-button" @click="changepoints(1.0)">1.0</button>
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</div>
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</div>
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<div class="lcontainer">
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<button class="lpointbutton" @click="ltoggleButtons">减分</button>
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<div class="lsmall-buttons">
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<button class="small-button" @click="changepoints(-1.5)">1.5</button>
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<button class="small-button" @click="changepoints(-2.0)">2.0</button>
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<button class="small-button" @click="changepoints(-2.5)">2.5</button>
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<button class="small-button" @click="changepoints(-3.0)">3.0</button>
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<button class="small-button" @click="changepoints(-0.5)">0.5</button>
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<button class="small-button" @click="changepoints(-1.0)">1.0</button>
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</div>
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</div>
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</div>
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<script>
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new Vue({
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el: '#app',
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data: {
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top3 :["haha","sdd","eeee"],
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},
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methods: {
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uploadFile() {
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uploadFile();
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},
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getRandomStudent() {
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// 调用外部的 getRandomStudent 函数
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getRandomStudent();
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},
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handleFileUpload(event) {
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const file = event.target.files[0];
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// 处理文件上传
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if (file) {
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this.uploadFile();
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}
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},
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rtoggleButtons()
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{
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smallButtons = document.querySelector('.small-buttons');
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smallButtons.classList.toggle('show');
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},
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ltoggleButtons()
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{
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smallButtons = document.querySelector('.lsmall-buttons');
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smallButtons.classList.toggle('show');
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},
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changepoints(chan)
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{
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console.log(chan);
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changepoints(chan);
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}
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}
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});
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</script>
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<script>
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// 定义画布宽高和生成点的个数
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var WIDTH = window.innerWidth, HEIGHT = window.innerHeight, POINT = 35;
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var canvas = document.getElementById('Mycanvas');
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canvas.width = WIDTH,
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canvas.height = HEIGHT;
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var context = canvas.getContext('2d');
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context.strokeStyle = 'rgba(0,0,0,0.02)',
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context.strokeWidth = 1,
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context.fillStyle = 'rgba(0,0,0,0.05)';
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var circleArr = [];
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// 线条：开始xy坐标，结束xy坐标，线条透明度
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function Line (x, y, _x, _y, o) {
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this.beginX = x,
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this.beginY = y,
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this.closeX = _x,
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this.closeY = _y,
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this.o = o;
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}
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// 点：圆心xy坐标，半径，每帧移动xy的距离
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|
function Circle (x, y, r, moveX, moveY) {
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this.x = x,
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this.y = y,
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this.r = r,
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this.moveX = moveX,
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this.moveY = moveY;
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}
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// 生成max和min之间的随机数
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function num (max, _min) {
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var min = arguments[1] || 0;
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return Math.floor(Math.random()*(max-min+1)+min);
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}
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// 绘制原点
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|
function drawCricle (cxt, x, y, r, moveX, moveY) {
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|
var circle = new Circle(x, y, r, moveX, moveY)
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cxt.beginPath()
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cxt.arc(circle.x, circle.y, circle.r, 0, 2*Math.PI)
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cxt.closePath()
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|
cxt.fill();
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|
return circle;
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}
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|
// 绘制线条
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|
function drawLine (cxt, x, y, _x, _y, o) {
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|
var line = new Line(x, y, _x, _y, o)
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|
cxt.beginPath()
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|
cxt.strokeStyle = 'rgba(0,0,0,'+ o +')'
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|
cxt.moveTo(line.beginX, line.beginY)
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cxt.lineTo(line.closeX, line.closeY)
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|
cxt.closePath()
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|
cxt.stroke();
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|
}
|
|
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|
|
// 初始化生成原点
|
|
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|
|
function init () {
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|
circleArr = [];
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|
|
for (var i = 0; i < POINT; i++) {
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|
circleArr.push(drawCricle(context, num(WIDTH), num(HEIGHT), num(15, 2), num(10, -10)/40, num(10, -10)/40));
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|
|
}
|
|
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|
|
draw();
|
|
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|
|
}
|
|
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|
|
// 每帧绘制
|
|
|
|
|
|
function draw () {
|
|
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|
|
context.clearRect(0,0,canvas.width, canvas.height);
|
|
|
|
|
|
for (var i = 0; i < POINT; i++) {
|
|
|
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|
|
drawCricle(context, circleArr[i].x, circleArr[i].y, circleArr[i].r);
|
|
|
|
|
|
}
|
|
|
|
|
|
for (var i = 0; i < POINT; i++) {
|
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|
|
|
|
for (var j = 0; j < POINT; j++) {
|
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|
|
|
|
if (i + j < POINT) {
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|
|
|
|
|
var A = Math.abs(circleArr[i+j].x - circleArr[i].x),
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|
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|
|
B = Math.abs(circleArr[i+j].y - circleArr[i].y);
|
|
|
|
|
|
var lineLength = Math.sqrt(A*A + B*B);
|
|
|
|
|
|
var C = 1/lineLength*7-0.009;
|
|
|
|
|
|
var lineOpacity = C > 0.03 ? 0.03 : C;
|
|
|
|
|
|
if (lineOpacity > 0) {
|
|
|
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|
|
drawLine(context, circleArr[i].x, circleArr[i].y, circleArr[i+j].x, circleArr[i+j].y, lineOpacity);
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|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
// 调用执行
|
|
|
|
|
|
window.onload = function () {
|
|
|
|
|
|
init();
|
|
|
|
|
|
setInterval(function () {
|
|
|
|
|
|
for (var i = 0; i < POINT; i++) {
|
|
|
|
|
|
var cir = circleArr[i];
|
|
|
|
|
|
cir.x += cir.moveX;
|
|
|
|
|
|
cir.y += cir.moveY;
|
|
|
|
|
|
if (cir.x > WIDTH) cir.x = 0;
|
|
|
|
|
|
else if (cir.x < 0) cir.x = WIDTH;
|
|
|
|
|
|
if (cir.y > HEIGHT) cir.y = 0;
|
|
|
|
|
|
else if (cir.y < 0) cir.y = HEIGHT;
|
|
|
|
|
|
}
|
|
|
|
|
|
draw();
|
|
|
|
|
|
}, 16);
|
|
|
|
|
|
}
|
|
|
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
|
|
</body>
|
|
|
|
|
|
</html>
|
