HTML 动态更新时间和日期 - 每秒钟更新一次
<!DOCTYPE html>
<html>
<head>
<title>动态更新内容</title>
<script>
function updateTime() {
var date = new Date();
var time = date.toLocaleTimeString();
var datetime = date.toLocaleDateString() + ' ' + time;
document.getElementById('content').innerHTML = datetime;
}
setInterval(updateTime, 1000);
</script>
</head>
<body>
<div style='width: 150px; height: 150px; border: 1px solid black;' id='content'>当前时间</div>
</body>
</html>
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