没有管理员权限    <p>你将在 <span id="countdown">5</span> 秒后返回 
    <script>
        let seconds = 5;
        const countdownElement = document.getElementById('countdown');
        const intervalId = setInterval(() => {
            seconds--;
            countdownElement.textContent = seconds;
            if (seconds <= 0) {
                clearInterval(intervalId);
                window.location.href = '../index.php';
            }
        }, 1000);
    </script>