JavaScript实现 获取动态显示年月日星期时分秒 

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		<h1 id="date_time"></h1>
		<script type="text/javascript">
			function getweek(option){
				// switch (option){
				// 	case 0:
				// 		return "星期日";
				// 	case 1:
				// 		return "星期一";
				// 	case 2:
				// 		return "星期二";
				// 	case 3:
				// 		return "星期三";
				// 	case 4:
				// 		return "星期四";
				// 	case 5:
				// 		return "星期五";
				// 	case 6:
				// 		return "星期六";
				// 	default:
				// 		break;
				var iweek="日一二三四五六".charAt(option);
				return "星期"+iweek;
			}
			function showTime(){
				var dateTime=new Date();
				var year=dateTime.getFullYear();
				var mouth=dateTime.getMonth()+1;
				mouth=mouth<10?"0"+mouth:mouth;
				var date=dateTime.getDate();
				date=date<10?"0"+date:date;
				var hour=dateTime.getHours();
				hour=hour<10?"0"+hour:hour;
				var minute=dateTime.getMinutes();
				minute=minute<10?"0"+minute:minute;
				var second=dateTime.getSeconds();
				second=second<10?"0"+second:second;
				var day=dateTime.getDate()+1;
				var week=getweek(day);
				dateTime=year+"年"+mouth+"月"+date+"日"+" "+week+" "+hour+":"+minute+":"+second;
				document.getElementById("date_time").innerHTML=dateTime;
			}
			showTime();
			setInterval("showTime()",1000);//间隔多少毫秒执行一次方法
		</script>
	</body>
</html>

　　

posted @ 2021-06-04 14:10  好人有好报  阅读(123)  评论(0)    收藏  举报