本文详细介绍了倒计时代码的实现方法，包括简单的倒计时和更复杂的计时功能，涉及JavaScript和C#语言的应用。从基本原理到具体实例，旨在帮助开发者理解和掌握倒计时功能的实现。
简单的倒计时的代码：
var urodz= new Date("4/25/2011");
var now =
new Date();
var ile =
urodz.getTime() - now.getTime();
var dni =
Math.floor(ile / (1000 * 60 * 60 * 24)) + "";
if (dni
> 1)
document.write(dni);
复杂一点的：
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>对联广告 - Citk.Net</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<!--倒计时Javascript begin-->
<script language="JavaScript">
<!--
function DigitalTime1() {
var deadline = new Date("10/13/2010") //开幕倒计时
var symbol = "10月13日"
var now = new Date()
var diff = -480 - now.getTimezoneOffset() //是北京时间和当地时间的时间差
var leave = (deadline.getTime() - now.getTime()) + diff * 60000
var day = Math.floor(leave / (1000 * 60 * 60 * 24))
var hour = Math.floor(leave / (1000 * 3600)) - (day * 24)
var minute = Math.floor(leave / (1000 * 60)) - (day * 24 * 60) - (hour * 60)
var second = Math.floor(leave / (1000)) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60)
var deadline_2 = new Date("10/13/2010") //开幕后计时
var symbol_2 = "10月13日"
var now_2 = new Date()
var diff_2 = -480 - now.getTimezoneOffset() //是北京时间和当地时间的时间差
var leave_2 = (now_2.getTime() - deadline_2.getTime()) + diff_2 * 60000
var day_2 = Math.floor(leave_2 / (1000 * 60 * 60 * 24))
var hour_2 = Math.floor(leave_2 / (1000 * 3600)) - (day_2 * 24)
var minute_2 = Math.floor(leave_2 / (1000 * 60)) - (day_2 * 24 * 60) - (hour_2 * 60)
var second_2 = Math.floor(leave_2 / (1000)) - (day_2 * 24 * 60 * 60) - (hour_2 * 60 * 60) - (minute_2 * 60)
day = day + 1;
day_2 = day_2 + 1;
if (day > 0) //还未开幕
{
//LiveClock1.innerHTML = "现在"+symbol+"天"
LiveClock1.innerHTML = "<font class=fon1>距离" + symbol + "开幕还有<font class=fon2>" + day + "</font> 天</font>"
setTimeout("DigitalTime1()", 1000)
}
if (day < 0) //已经开幕
{
//LiveClock1.innerHTML = "现在离"+symbol+"还有"+day+"天"+hour+"小时"+minute+"分"+second +"秒"
LiveClock1.innerHTML = "<font class=fon1>" + symbol + "开幕已有<font class=fon2>" + day_2 + "</font> 天</font>"
setTimeout("DigitalTime1()", 1000)
}
if (day == 0) //正在开幕
{
//LiveClock1.innerHTML = "现在"+symbol+"天"
LiveClock1.innerHTML = "<font class=fon1>某某运动会今天开幕</font>"
setTimeout("DigitalTime1()", 1000)
}
if (day < 0 & day_2 > 19) //某某运动会结束
{
//LiveClock1.innerHTML = "现在离"+symbol+"还有"+day+"天"+hour+"小时"+minute+"分"+second +"秒"
LiveClock1.innerHTML = "<font class=fon1>某某运动会已全部结束</font>"
setTimeout("DigitalTime1()", 1000)
}
}
// -->
</script>
<!--倒计时Javascript end-->
<body onload=DigitalTime1()>
<div id= LiveClock1></div>
</body>
</html>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>对联广告 - Citk.Net</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head>
<!--倒计时Javascript begin-->
<script language="JavaScript">
<!--
function DigitalTime1() {
var deadline = new Date("10/13/2010") //开幕倒计时
var symbol = "10月13日"
var now = new Date()
var diff = -480 - now.getTimezoneOffset() //是北京时间和当地时间的时间差
var leave = (deadline.getTime() - now.getTime()) + diff * 60000
var day = Math.floor(leave / (1000 * 60 * 60 * 24))
var hour = Math.floor(leave / (1000 * 3600)) - (day * 24)
var minute = Math.floor(leave / (1000 * 60)) - (day * 24 * 60) - (hour * 60)
var second = Math.floor(leave / (1000)) - (day * 24 * 60 * 60) - (hour * 60 * 60) - (minute * 60)
var deadline_2 = new Date("10/13/2010") //开幕后计时
var symbol_2 = "10月13日"
var now_2 = new Date()
var diff_2 = -480 - now.getTimezoneOffset() //是北京时间和当地时间的时间差
var leave_2 = (now_2.getTime() - deadline_2.getTime()) + diff_2 * 60000
var day_2 = Math.floor(leave_2 / (1000 * 60 * 60 * 24))
var hour_2 = Math.floor(leave_2 / (1000 * 3600)) - (day_2 * 24)
var minute_2 = Math.floor(leave_2 / (1000 * 60)) - (day_2 * 24 * 60) - (hour_2 * 60)
var second_2 = Math.floor(leave_2 / (1000)) - (day_2 * 24 * 60 * 60) - (hour_2 * 60 * 60) - (minute_2 * 60)
day = day + 1;
day_2 = day_2 + 1;
if (day > 0) //还未开幕
{
//LiveClock1.innerHTML = "现在"+symbol+"天"
LiveClock1.innerHTML = "<font class=fon1>距离" + symbol + "开幕还有<font class=fon2>" + day + "</font> 天</font>"
setTimeout("DigitalTime1()", 1000)
}
if (day < 0) //已经开幕
{
//LiveClock1.innerHTML = "现在离"+symbol+"还有"+day+"天"+hour+"小时"+minute+"分"+second +"秒"
LiveClock1.innerHTML = "<font class=fon1>" + symbol + "开幕已有<font class=fon2>" + day_2 + "</font> 天</font>"
setTimeout("DigitalTime1()", 1000)
}
if (day == 0) //正在开幕
{
//LiveClock1.innerHTML = "现在"+symbol+"天"
LiveClock1.innerHTML = "<font class=fon1>某某运动会今天开幕</font>"
setTimeout("DigitalTime1()", 1000)
}
if (day < 0 & day_2 > 19) //某某运动会结束
{
//LiveClock1.innerHTML = "现在离"+symbol+"还有"+day+"天"+hour+"小时"+minute+"分"+second +"秒"
LiveClock1.innerHTML = "<font class=fon1>某某运动会已全部结束</font>"
setTimeout("DigitalTime1()", 1000)
}
}
// -->
</script>
<!--倒计时Javascript end-->
<body onload=DigitalTime1()>
<div id= LiveClock1></div>
</body>
</html>
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