<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>课堂随机点名</title>
    <style>
        body {
            font-family: Arial, sans-serif;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            height: 100vh;
            margin: 0;
            background-color: #f4f4f9;
        }
        h1 {
            color: #333;
        }
        #name-display {
            font-size: 36px;
            color: #e74c3c;
            margin: 20px 0;
            text-align: center;
        }
        button {
            padding: 10px 20px;
            font-size: 18px;
            background-color: #3498db;
            color: white;
            border: none;
            border-radius: 5px;
            cursor: pointer;
            transition: background-color 0.3s ease;
        }
        button:hover {
            background-color: #2980b9;
        }
    </style>
</head>
<body>
    <h1>课堂随机点名</h1>
    <div id="name-display">点击开始点名</div>
    <button id="start-stop-button" onclick="toggleRollCall()">开始点名</button>
    <script>
        // 定义学生名单
        const students = [
"柴子欣",
"陈君昊",
"陈诺诺",
"陈诗怡",
"崔一博",
"郭子龙",
"柯菁菁",
"李铖乐",
"李可唯",
"梁思仪",
"刘梦瑶",
"刘欣怡",
"刘祎祎",
"刘芷涵",
"孙张杨",
"陶一帆",
"涂文韬",
"万呈祥",
"王博涵",
"王家鑫",
"王锦泽",
"王天琪",
"吴静阳",
"肖景怡",
"徐静璇",
"杨鸿程",
"杨逸轩",
"云玉洁",
"张凌薇",
"赵锦程",
"赵世强",
"朱瑞琦"


        ];
        let intervalId;
        let isRolling = false;
        function toggleRollCall() {
            const button = document.getElementById('start-stop-button');
            if (isRolling) {
                // 停止点名
                clearInterval(intervalId);
                button.textContent = "开始点名";
            } else {
                // 开始点名
                intervalId = setInterval(() => {
                    const randomIndex = Math.floor(Math.random() * students.length);
                    const randomName = students[randomIndex];
                    document.getElementById('name-display').textContent = randomName;
                }, 100);
                button.textContent = "停止点名";
            }
            isRolling = !isRolling;
        }
    </script>
</body>
</html>