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JS倒計時代碼匯總
編輯:關於JavaScript     

本文實例總結了常見的JS倒計時代碼。分享給大家供大家參考。具體匯總如下:

第一種:精確到秒的javascript倒計時代碼 

HTML代碼: 
復制代碼 代碼如下:<form name="form1"> 
<div align="center" align="center"> 
<center>離2010年還有:<br> 
<input type="textarea" name="left" size="35" style="text-align: center"> 
</center> 
</div> 
</form> 
<script LANGUAGE="javascript"> 
startclock() 
var timerID = null; 
var timerRunning = false; 
function showtime() { 
Today = new Date(); 
var NowHour = Today.getHours(); 
var NowMinute = Today.getMinutes(); 
var NowMonth = Today.getMonth(); 
var NowDate = Today.getDate(); 
var NowYear = Today.getYear(); 
var NowSecond = Today.getSeconds(); 
if (NowYear <2000) 
NowYear=1900+NowYear; 
Today = null; 
Hourleft = 23 - NowHour 
Minuteleft = 59 - NowMinute 
Secondleft = 59 - NowSecond 
Yearleft = 2009 - NowYear 
Monthleft = 12 - NowMonth - 1
Dateleft = 31 - NowDate 
if (Secondleft<0) 

Secondleft=60+Secondleft; 
Minuteleft=Minuteleft-1; 

if (Minuteleft<0) 
{  
Minuteleft=60+Minuteleft; 
Hourleft=Hourleft-1; 

if (Hourleft<0) 

Hourleft=24+Hourleft; 
Dateleft=Dateleft-1; 

if (Dateleft<0) 

Dateleft=31+Dateleft; 
Monthleft=Monthleft-1; 

if (Monthleft<0) 

Monthleft=12+Monthleft; 
Yearleft=Yearleft-1; 

Temp=Yearleft+'年, '+Monthleft+'月, '+Dateleft+'天, '+Hourleft+'小時, '+Minuteleft+'分, '+Secondleft+'秒'
document.form1.left.value=Temp; 
timerID = setTimeout("showtime()",1000); 
timerRunning = true; 

var timerID = null; 
var timerRunning = false; 
function stopclock () { 
if(timerRunning) 
clearTimeout(timerID); 
timerRunning = false; 

function startclock () { 
stopclock(); 
showtime(); 

// --> 
</script>

第二種:某某運動會 

HTML代碼: 
復制代碼 代碼如下:<!--倒計時Javascript begin--> 
<script language="JavaScript"> 
<!--  
function DigitalTime1() 
{  
var deadline= new Date("08/13/2007") //開幕倒計時 
var symbol="8月13日"
var now = new Date() 
var diff = -480 - now.getTimezoneOffset() //是北京時間和當地時間的時間差 
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("08/13/2004") //開幕後計時 
var symbol_2="8月13日"
var now_2 = new Date() 
var diff_2 = -480 - now.getTimezoneOffset() //是北京時間和當地時間的時間差 
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) //還未開幕 

//LiveClock1.innerHTML = "現在"+symbol+"天" 
LiveClock1.innerHTML = "<font
setTimeout("DigitalTime1()",1000) 

if (day<0) //已經開幕 

//LiveClock1.innerHTML = "現在離"+symbol+"還有"+day+"天"+hour+"小時"+minute+"分"+second +"秒" 
LiveClock1.innerHTML = "<font
setTimeout("DigitalTime1()",1000) 

if (day==0) //正在開幕 

//LiveClock1.innerHTML = "現在"+symbol+"天" 
LiveClock1.innerHTML = "<font
setTimeout("DigitalTime1()",1000) 

  
if (day<0 & day_2>19) //某某運動會結束 

//LiveClock1.innerHTML = "現在離"+symbol+"還有"+day+"天"+hour+"小時"+minute+"分"+second +"秒" 
LiveClock1.innerHTML = "<font
setTimeout("DigitalTime1()",1000) 


// --> 
</script> 
<!--倒計時Javascript end--> 
<body onload=DigitalTime1()> 
<div id= LiveClock1></div> 
</body>
 
第三種:小時倒計時 

HTML代碼: 
復制代碼 代碼如下:<SCRIPT LANGUAGE="JavaScript"> 
<!-- 
var maxtime = 60*60 //一個小時,按秒計算,自己調整! 
function CountDown(){ 
if(maxtime>=0){ 
minutes = Math.floor(maxtime/60); 
seconds = Math.floor(maxtime`); 
msg = "距離結束還有"+minutes+"分"+seconds+"秒"; 
document.all["timer"].innerHTML=msg; 
if(maxtime == 5*60) alert('注意,還有5分鐘!'); 
--maxtime; 

else{ 
clearInterval(timer); 
alert("時間到,結束!"); 


timer = setInterval("CountDown()",1000); 
//--> 
</SCRIPT> 
<div id="timer" style="color:red"></div>

第四種:最簡倒計時 

HTML代碼: 
復制代碼 代碼如下:<Script Language="JavaScript">  
<!-- Begin  
  var timedate= new Date("January 14,2006");  
  var times="研究生考試";  
  var now = new Date();  
  var date = timedate.getTime() - now.getTime();  
  var time = Math.floor(date / (1000 * 60 * 60 * 24));  
  if (time >= 0) ; 
document.write("<li><font color=#DEDBDE>現在離2006年"+times+"還有: <font color=#ffffff><b>"+time +"</b></font> 天</font></li>"); 
// End --> 
</Script>

第五種:最簡倒計時二 

HTML代碼: 
復制代碼 代碼如下:<script language="JavaScript" type="text/javascript"> 
function djs(){ 
var urodz= new Date("11/12/2008");  
var now = new Date(); 
var num 
var ile = urodz.getTime() - now.getTime();   
var dni = Math.floor(ile / (1000 * 60 * 60 * 24));   
if (dni >1)   
num=dni+1
else if (dni == 1) num=2  
else if (dni == 0) num=1
else num=0  
document.write(num)   

</script> 
距某某開幕式還有 [<script language="JavaScript" type="text/javascript">djs()</script>] 天

第六個:Javascript倒計時器 - 采用系統時間自校驗

這次利用系統時間自校驗倒計時, 無需手工調校使得倒計時更為精確, 代碼及詳細注釋如下: 
復制代碼 代碼如下:<span id="clock">00:01:11:00</span> 
<input id="startB" type="button" value="start countdown!" onclick="run()"> 
<input id="endB" type="button" value="stop countdown!" onclick="stop()"> 
<br> 
<input id="diff" type="text"> 
<input id="next" type="text"> 
<script language="Javascript"> 
var normalelapse = 100; 
var nextelapse = normalelapse; 
var counter;  
var startTime; 
var start = clock.innerText;  
var finish = "00:00:00:00"; 
var timer = null; 
// 開始運行 
function run() { 
startB.disabled = true; 
endB.disabled = false; 
counter = 0; 
// 初始化開始時間 
startTime = new Date().valueOf(); 
// nextelapse是定時時間, 初始時為100毫秒 
// 注意setInterval函數: 時間逝去nextelapse(毫秒)後, onTimer才開始執行 
timer = window.setInterval("onTimer()", nextelapse);  

// 停止運行 
function stop() { 
startB.disabled = false; 
endB.disabled = true; 
window.clearTimeout(timer); 

window.onload = function() { 
endB.disabled = true; 

// 倒計時函數 
function onTimer() 

if (start == finish) 

window.clearInterval(timer); 
alert("time is up!"); 
return; 

var hms = new String(start).split(":"); 
var ms = new Number(hms[3]); 
var s = new Number(hms[2]); 
var m = new Number(hms[1]); 
var h = new Number(hms[0]); 
ms -= 10; 
if (ms < 0) 

ms = 90; 
s -= 1; 
if (s < 0) 

    s = 59; 
    m -= 1; 

if (m < 0) 

    m = 59; 
    h -= 1; 


var ms = ms < 10 ? ("0" + ms) : ms; 
var ss = s < 10 ? ("0" + s) : s; 
var sm = m < 10 ? ("0" + m) : m; 
var sh = h < 10 ? ("0" + h) : h; 
start = sh + ":" + sm + ":" + ss + ":" + ms; 
clock.innerText = start; 
// 清除上一次的定時器 
window.clearInterval(timer); 
// 自校驗系統時間得到時間差, 並由此得到下次所啟動的新定時器的時間nextelapse 
counter++;  
var counterSecs = counter * 100; 
var elapseSecs = new Date().valueOf() - startTime; 
var diffSecs = counterSecs - elapseSecs; 
nextelapse = normalelapse + diffSecs; 
diff.value = counterSecs + "-" + elapseSecs + "=" + diffSecs; 
next.value = "nextelapse = " + nextelapse; 
if (nextelapse < 0) nextelapse = 0; 
// 啟動新的定時器 
timer = window.setInterval("onTimer()", nextelapse);  

</script>

希望本文所述對大家基於javascript的web程序設計有所幫助。

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