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網(wǎng)頁實(shí)時(shí)顯示時(shí)間懸浮在屏幕網(wǎng)頁中顯示時(shí)間

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要實(shí)現(xiàn)網(wǎng)頁實(shí)時(shí)顯示時(shí)間并懸浮在屏幕，可以使用HTML、CSS和JavaScript。以下是一個(gè)簡單的示例：

創(chuàng)建一個(gè)HTML文件，添加一個(gè)<div>元素用于顯示時(shí)間，以及一個(gè)<script>標(biāo)簽用于編寫JavaScript代碼。

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>實(shí)時(shí)顯示時(shí)間</title>
    <style>
        #time {
            position: fixed;
            top: 50%;
            left: 50%;
            transform: translate(-50%, -50%);
            background-color: rgba(255, 255, 255, 0.8);
            padding: 20px;
            font-size: 24px;
            font-weight: bold;
            color: #333;
            border-radius: 8px;
        }
    </style>
</head>
<body>
    <div id="time"></div>
    <script>
        function updateTime() {
            const now = new Date();
            const hours = String(now.getHours()).padStart(2, '0');
            const minutes = String(now.getMinutes()).padStart(2, '0');
            const seconds = String(now.getSeconds()).padStart(2, '0');
            return `${hours}:${minutes}:${seconds}`;
        }

        const timeElement = document.getElementById('time');
        setInterval(function () {
            const currentTime = updateTime();
            timeElement.innerText = currentTime;
        }, 1000);
    </script>
</body>
</html>