元旦倒计时代码实现-优快云博客

首次参加csdn的活动“提交一个元旦倒计时代码”，纪念一下。

使用了setInterval函数传递第三个参数，IE9以及以下版本不支持。

<!doctype html>
<html>
<head>
<script type="text/javascript">
var showCountDown = function(dateStr) {
					var toDate,nowDate,toTime,nowTime;
					var diff,ms,seconde,minute,hour,day;
					var str;
					toDate = new Date(dateStr);
					nowDate = new Date();

					toTime = toDate.getTime();
					nowTime = nowDate.getTime();

					diff = toTime - nowTime;

					if(diff > 0) {
						//console.log(diff);
						ms = Math.floor(diff % 1000);
						//console.log('ms: ' + ms);
						diff = diff / 1000;
						second = Math.floor(diff % 60 );
						diff = diff / 60;
						minute = Math.floor(diff % 60);
						diff = diff / 60;
						hour = Math.floor(diff % 24);
						diff = diff / 24;
						day = Math.floor(diff % 24);

						document.getElementById('day').innerHTML = day + "天";
						document.getElementById('hour').innerHTML = hour + "小时";
						document.getElementById('minute').innerHTML = minute + "分钟";
						document.getElementById('second').innerHTML = second + "秒";
	                    
					}
					else {
						alert('倒计时已结束！');
					}

				}

function init() {
	showCountDown("2023-1-1 00:00:00");
	setInterval(showCountDown,1000,"2023-1-1 00:00:00");
}


</script>
  <style>
  body{
    text-align: center;
  }
  div {
	display:inline-block;
  }
  span{
	float: left;
	font-size: 50px;
  }
  label {
    float: left;
	width: 100px;
	height: 100px;
	background-color: #000;
	line-height: 100px;
	color: #fff;
	font-size: 30px;
	margin-right: 10px;
	text-decoration:none;
  }
  </style>
</head>
<body onload="init()">
  <h1 style="color:red;">
		元旦倒计时
  </h1>
  <div>
    <span>
		<label id="day">
		</label>
		<label id="hour">
		</label>
		<label id="minute">
		</label>
		<label id="second">
		</label>
	</span>
  </div>
    
</body>
</html>