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index.html
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<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>班级随机抽号器</title>
<link rel="icon" href="https://wmimg.com/i/1169/2024/12/674c46c8cb5e7.png" type="image/webp">
<!-- 引入Bootstrap CSS -->
<link href="/bootstrap.min.css" rel="stylesheet">
<style>
body {
font-family: 'Arial', sans-serif;
background-color: #f8f9fa;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
height: 100vh;
margin: 0;
}
.container {
text-align: center;
margin-top: 50px; /* 增加顶部边距，使主体内容向下移动 */
}
#result {
font-size: 128px; /* 加大字体大小 */
margin-top: 20px;
margin-bottom: 40px;
color: #007bff;
}
.input-group {
margin-bottom: 20px;
}
.probability-section {
margin-top: 40px;
}
footer {
margin-top: auto;
padding: 10px;
background-color: #e9ecef;
width: 100%;
text-align: center;
font-size: 14px;
color: #6c757d;
}
#customImage {
display: none;
margin-top: 20px;
}
</style>
</head>
<body>
<div class="container">
<h1 class="mb-4">班级随机抽号器</h1>
<div id="result">?</div>
<div class="input-group mb-3">
<div class="input-group-prepend">
<span class="input-group-text">最小学号</span>
</div>
<input type="number" id="min" class="form-control" value="1">
</div>
<div class="input-group mb-3">
<div class="input-group-prepend">
<span class="input-group-text">最大学号</span>
</div>
<input type="number" id="max" class="form-control" value="50">
</div>
<div class="row justify-content-center">
<div class="col-auto">
<button id="startBtn" class="btn btn-primary btn-lg mr-2">开始抽号</button>
</div>
<div class="col-auto">
<button id="stopBtn" class="btn btn-danger btn-lg" disabled>暂停抽号</button>
</div>
<div class="col-auto">
<button id="setProbBtn" class="btn btn-secondary btn-lg" data-toggle="modal" data-target="#probModal">设置</button>
</div>
</div>
</div>
<!-- 概率设置模态框 -->
<div class="modal fade" id="probModal" tabindex="-1" role="dialog" aria-labelledby="probModalLabel" aria-hidden="true">
<div class="modal-dialog modal-lg" role="document">
<div class="modal-content">
<div class="modal-header">
<h5 class="modal-title" id="probModalLabel">设置</h5>
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
</div>
<div class="modal-body">
<div id="probInputs" class="row">
<!-- 学号和概率输入框将在这里动态生成 -->
</div>
<div class="input-group mb-3">
<div class="input-group-prepend">
<span class="input-group-text">密码</span>
</div>
<input type="password" id="password" class="form-control">
</div>
<div class="form-check">
<input class="form-check-input" type="checkbox" id="customCheckbox">
<label class="form-check-label" for="customCheckbox">
定制
</label>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-secondary" data-dismiss="modal">关闭</button>
<button type="button" class="btn btn-primary" id="saveProbBtn">保存</button>
<button type="button" class="btn btn-warning" id="resetProbBtn">恢复默认</button>
</div>
</div>
</div>
</div>
<!-- 显示定制照片的区域 -->
<div id="customImage">
<img src="https://wmimg.com/i/1169/2024/12/674c478b08c82.png" alt="定制照片" style="max-width: 100%;">
</div>
<!-- 引入Bootstrap JS和依赖 -->
<script src="/jquery-3.5.1.slim.min.js"></script>
<script src="/popper.min.js"></script>
<script src="/bootstrap.min.js"></script>
<script>
let intervalId;
let min, max;
let probabilities = {};
let defaultProbabilities = {};
document.getElementById('startBtn').addEventListener('click', function() {
min = parseInt(document.getElementById('min').value);
max = parseInt(document.getElementById('max').value);
if (min >= max) {
alert('最小学号必须小于最大学号！');
return;
}
document.getElementById('startBtn').disabled = true;
document.getElementById('stopBtn').disabled = false;
intervalId = setInterval(function() {
const randomNum = getRandomNumber();
document.getElementById('result').textContent = randomNum;
}, 100); // 0.1秒一个
});
document.getElementById('stopBtn').addEventListener('click', function() {
clearInterval(intervalId);
document.getElementById('startBtn').disabled = false;
document.getElementById('stopBtn').disabled = true;
});
document.getElementById('setProbBtn').addEventListener('click', function() {
min = parseInt(document.getElementById('min').value);
max = parseInt(document.getElementById('max').value);
if (min >= max) {
alert('最小学号必须小于最大学号！');
return;
}
const probInputsDiv = document.getElementById('probInputs');
probInputsDiv.innerHTML = ''; // 清空之前的输入框
for (let i = min; i <= max; i++) {
const colDiv = document.createElement('div');
colDiv.className = 'col-3 mb-3';
const inputGroup = document.createElement('div');
inputGroup.className = 'input-group';
const prependDiv = document.createElement('div');
prependDiv.className = 'input-group-prepend';
prependDiv.innerHTML = `<span class="input-group-text">学号 ${i}</span>`;
const input = document.createElement('input');
input.type = 'number';
input.className = 'form-control prob-input';
input.value = probabilities[i] || 0;
input.dataset.number = i;
inputGroup.appendChild(prependDiv);
inputGroup.appendChild(input);
colDiv.appendChild(inputGroup);
probInputsDiv.appendChild(colDiv);
defaultProbabilities[i] = 0; // 默认概率为0
}
});
document.getElementById('saveProbBtn').addEventListener('click', function() {
const password = document.getElementById('password').value;
if (password !== '1711') {
alert('密码错误！');
return;
}
const probInputs = document.querySelectorAll('.prob-input');
probInputs.forEach(input => {
const probNumber = parseInt(input.dataset.number);
const probValue = parseInt(input.value);
if (probValue < 0 || probValue > 100) {
alert(`学号 ${probNumber} 的概率值必须在0到100之间！`);
return;
}
probabilities[probNumber] = probValue;
});
alert('设置已保存！');
$('#probModal').modal('hide');
});
document.getElementById('resetProbBtn').addEventListener('click', function() {
const probInputs = document.querySelectorAll('.prob-input');
probInputs.forEach(input => {
const probNumber = parseInt(input.dataset.number);
input.value = defaultProbabilities[probNumber];
probabilities[probNumber] = defaultProbabilities[probNumber];
});
alert('设置已恢复为默认值！');
});
document.getElementById('customCheckbox').addEventListener('change', function() {
const customImage = document.getElementById('customImage');
customImage.style.display = this.checked ? 'block' : 'none';
});
function getRandomNumber() {
const totalProb = Object.values(probabilities).reduce((sum, prob) => sum + prob, 0);
const random = Math.random() * 100;
let cumulativeProb = 0;
for (const [number, prob] of Object.entries(probabilities)) {
cumulativeProb += prob;
if (random < cumulativeProb) {
return number;
}
}
return Math.floor(Math.random() * (max - min + 1)) + min;
}
</script>
<!-- 版权页脚 -->
<footer>
<p>© 2024 Wu jingbo </p>
</footer>
</body>
</html>