开发者工具 限时活动

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>限时活动</title>
    <style>
        .timer {
            font-size: 2em;
            color: red;
        }
    </style>
</head>
<body>
    <h1>欢迎参加限时活动！</h1>
    <div id="timer" class="timer"></div>

    <script>
        const endTime = new Date('2023-12-31T23:59:59').getTime();
        const timerElement = document.getElementById('timer');

        function updateTimer() {
            const now = new Date().getTime();
            const distance = endTime - now;

            if (distance < 0) {
                clearInterval(interval);
                timerElement.innerHTML = "活动已结束";
                return;
            }

            const days = Math.floor(distance / (1000 * 60 * 60 * 24));
            const hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
            const minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
            const seconds = Math.floor((distance % (1000 * 60)) / 1000);

            timerElement.innerHTML = `${days}天 ${hours}小时 ${minutes}分钟 ${seconds}秒`;
        }

        const interval = setInterval(updateTimer, 1000);
        updateTimer();
    </script>
</body>
</html>