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+<!DOCTYPE html>
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+<html lang="en">
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+ <head>
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+ <meta charset="UTF-8" />
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0" />
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+ <title>Document</title>
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+ <style>
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+ p {
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+ width: 400px;
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+ height: 300px;
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+ border: 1px solid #000;
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+ text-align: center;
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+ line-height: 300px;
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+ margin: 190px auto;
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+ font-size: 24px;
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+ }
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+ p span {
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+ color: red;
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+ }
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+ </style>
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+ </head>
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+ <body>
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+ <p>
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+ 倒计时：<span>0</span>天<span>0</span>小时<span>0</span>分<span>0</span>秒
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+ </p>
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+ <script>
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+ // innerText 添加内容文本
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+ var spans = document.querySelectorAll("span");
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+ // 结束时间戳
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+ var endTime = new Date("2024-2-9 12:00").getTime();
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+ // 开始时间戳
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+ var beginTime = new Date().getTime();
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+ // 相差的秒数 => 秒数的时间戳
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+ var diffTime = (endTime - beginTime) / 1000;
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+ // 天
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+ var day = parseInt(diffTime / 60 / 60 / 24);
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+ // 时
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+ var hours = parseInt((diffTime / 60 / 60) % 24);
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+ // 分
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+ var minutes = parseInt((diffTime / 60) % 60);
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+ // 秒
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+ var seconds = parseInt(diffTime % 60);
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+ spans[0].innerText = day;
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+ spans[1].innerText = hours;
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+ spans[2].innerText = minutes;
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+ spans[3].innerText = seconds;
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+ </script>
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+ </body>
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+</html>
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