玩转简单版倒计时

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我是靠谱客的博主贤惠皮皮虾，最近开发中收集的这篇文章主要介绍玩转简单版倒计时，觉得挺不错的，现在分享给大家，希望可以做个参考。

概述

直接上代码，可供参考：

<!DOCTYPE html>
<html>
 
	<head>
		<meta charset="utf-8" />
		<title>倒计时代码</title>
		<style type="text/css">
			* {
				margin: 0;
				padding: 0;
				font-family: "微软雅黑";
				font-size: 20px;
			}
			
			.time {
				overflow: hidden;
				margin: 100px auto;
				border: 1px solid blue;
				text-align: center;
				background: #3299CC;
				border-radius: 10px;
				padding: 20px;
				width: 530px;
			}
			
			.time h3 {
				font-size: 30px;
				text-align: center;
				padding-bottom: 30px;
				letter-spacing: 5px;
			}
			
			.time h3 input {
				border: none;
				width: 100px;
				height: 35px;
				text-align: center;
				border-radius: 8px;
				background: #f2f2f2;
			}
			
			.time .even,
			.time .odd {
				float: left;
				height: 50px;
				text-align: center;
				line-height: 50px;
				margin-right: 10px;
				border-radius: 8px;
			}
			
			.time .even {
				width: 35px;
				padding: 0 20px;
				background: #FF7F00;
				color: #ffffff;
			}
			
			.time .odd {
				width: 20px;
				padding: 0 10px;
				background: #ffffff;
			}
			
			#lastDiv {
				margin-right: 0;
			}
		</style>
	</head>
 
	<body>
		<div class="time">
			<h3>距离元旦还有:</h3>
			<div id="residueDays" class="even"></div>
			<div class="odd">天</div>
			<div id="residueHours" class="even"></div>
			<div class="odd">时</div>
			<div id="residueMinutes" class="even"></div>
			<div class="odd">分</div>
			<div id="residueSeconds" class="even"></div>
			<div class="odd" id="lastDiv">秒</div>
		</div>
	</body>
 
</html>
<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
<script type="text/javascript">
	function countDownTime() {
		// 倒计时截止时间
		var EndTime = new Date('2021/1/1 00:00:00');
		// 现在的时间
		var NowTime = new Date();
		// 时间差（时间单位：ms）
		var t = EndTime.getTime() - NowTime.getTime();
		var d = 0;
		var h = 0;
		var m = 0;
		var s = 0;
		if(t >= 0) {
			// 向下取整
			d = Math.floor(t / 1000 / 60 / 60 / 24);
			h = Math.floor(t / 1000 / 60 / 60 % 24);
			m = Math.floor(t / 1000 / 60 % 60);
			s = Math.floor(t / 1000 % 60);
		}
		// 如果是一位数，前面拼接"0"
		function toDouble(num) {
			return num < 10 ? '0' + num : num;
		}
		$("#residueDays").html(d);
		$("#residueHours").html(toDouble(h));
		$("#residueMinutes").html(toDouble(m));
		$("#residueSeconds").html(toDouble(s));
	}
	setInterval(countDownTime, 1000)
</script>