时钟显示 html JavaScript

sf.html

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>时间</title>
		<script>
			function showTime()
			{
				var time=new Date();
				
				var date=time.getDate();
				var year=time.getFullYear();
				var month=time.getMonth()+1;
				var hour=time.getHours();
				var minute=time.getMinutes();
				var second=time.getSeconds();
				var nianyueri=year+"年"+"&nbsp"+month+"月"+"&nbsp"+date+"日";
				var mytime=hour+":"+minute+":"+second;
				
				document.getElementById("nianyueri").innerHTML=nianyueri;
				document.getElementById("sj").innerHTML=mytime;
				setTimeout("showTime()",1000);
			}
		</script>
	</head>
	<body>
		<div>
			<div id="nianyueri"></div>
			<div id="sj">20:57</div>
			<script>
				showTime();
			</script>
		</div>
	</body>
</html>

运行后

单独显示年份

year.html

<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>年</title>
		<script>
			function showTime()
			{
				var time=new Date();
				var year=time.getFullYear();
				var showyear=year+'年';
				
				document.getElementById("Year").innerHTML=showyear;
				
				
			}
		</script>
	</head>
	<body>
		<div id="Year"></div>
		<script>showTime()</script>
	</body>
</html>