案例要求
1.点击点名按钮，名字界面随机显示，按钮文字由点名变为停止
2.再次点击点名按钮，显示当前被点名学生姓名，按钮文字由停止变为点名
案例源码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Random Student Picker</title>
<style>body {font-family: Arial, sans-serif;background-color: #f4f4f4;margin: 0;padding: 0;display: flex;justify-content: center;align-items: center;height: 100vh;}.container {text-align: center;}#nameDisplay {font-size: 24px;margin-bottom: 20px;}#toggleButton {background-color: #007bff;color: #fff;border: none;padding: 10px 20px;cursor: pointer;}
</style>
</head>
<body><div class="container"><div id="nameDisplay"></div><button id="toggleButton">点名</button>
</div><script src="https://code.jquery.com/jquery-3.6.0.min.js"></script>
<script>
$(document).ready(function() {var students = ["小明", "小红", "小李", "小张", "小王", "小刚", "小花", "小美", "小华", "小军", "小强", "小丽", "小明", "小红", "小李", "小张", "小王", "小刚", "小花", "小美", "小华", "小军", "小强", "小丽"];var interval;var isPicking = false;$('#toggleButton').click(function() {if (isPicking) {clearInterval(interval);isPicking = false;$(this).text('点名');} else {isPicking = true;$(this).text('停止');interval = setInterval(function() {var randomIndex = Math.floor(Math.random() * students.length);$('#nameDisplay').text(students[randomIndex]);}, 100);}});
});
</script>
</body>
</html>
