JavaScript 的倒计时器

PHPABC JavaScript 941 次浏览 , 没有评论

按钮可用状态倒计时…(JavaScript)

今天在一个网站注册的时候, 看到了在服务条款和声明的时候, 我同意这个按钮要等几秒钟才可用, 虽然以前也看到过, 但这几天实在是闲着无聊, 所以, 嘿, 咱也来一个吧.
Code:

<form name="frm">
<input type="submit" name="btnSubmit" value=" 我同意" />
</form>
 
<script language="javascript">
<!var sec = 9;
var wait = sec * 1000;
document.frm.btnSubmit.value = " 我同意[" + sec + "]";
document.frm.btnSubmit.disabled = true;
 
for(var i = 0; i <= sec; i++) {
 window.setTimeout("TimeUpdate(" + i + ")", i * 1000);
}
 
window.setTimeout("TimeOk()", wait);
 
function TimeUpdate(num) {
 if(num != sec) {
  var pntNum = (wait / 1000) - num;
  document.frm.btnSubmit.value = " 我同意[" + pntNum + "]";
 }
}
 
function TimeOk() {
 document.frm.btnSubmit.value = "我同意";
 document.frm.btnSubmit.disabled = false;
}
//–>
</script>

第一种:精确到秒的javascript倒计时代码
Code:
HTML代码:

<form name="form1">
<div align="center" align="middle">
<center>2010年还有:<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+’小时,+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>

第二种:某某运动会
Code:
HTML代码:

<!–倒计时Javascript begin–>
 <script language="JavaScript">
 <!function DigitalTime1()
 {
 var deadline= new Date("08/13/2007") //开幕倒计时
 var symbol="8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("08/13/2004") //开幕后计时
 var symbol_2="8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>

第三种:小时倒计时
Code:
HTML代码:

<SCRIPT LANGUAGE="JavaScript">
<!var maxtime = 60*60 //一个小时,按秒计算,自己调整!
function CountDown(){
 if(maxtime>=0){
 minutes = Math.floor(maxtime/60);
 seconds = Math.floor(maxtime%60);
 msg = "距离结束还有"+minutes+"分"+seconds+"秒";
 document.all["timer"].innerHTML=msg;
 if(maxtime == 5*60) alert(‘注意,还有5分钟!);
 –maxtime;
 }
 else{
 clearInterval(timer);
 alert(" 时间到,结束!");
 }
}
timer = setInterval("CountDown()",1000);
//–>
</SCRIPT>
<div id="timer" style="color:red"></div>

第四种:最简倒计时
Code:
HTML代码:

<Script Language="JavaScript">
<!– Begin
  var timedate= new Date("January 14,2006");
  var times="研究生考试";
  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>现在离2006年"+times+"还有: <font color=#ffffff><b>"+time +"</b></font> 天</font></li>");
// End –>
</Script>

第四种:最简倒计时二
Code:
HTML代码:

<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>

距某某开幕式还有

 [<script language="JavaScript" type="text/javascript">djs()</script>]

第五个:Javascript倒计时器 – 采用系统时间自校验
Code:

这次利用系统时间自校验倒计时, 无需手工调校使得倒计时更为精确, 代码及详细注释如下:

<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;
 
// 开始运行
function run() {
  startB.disabled = true;
  endB.disabled = false;
  counter = 0;
  // 初始化开始时间
  startTime = new Date().valueOf();
 
  // nextelapse是定时时间, 初始时为100毫秒
  // 注意setInterval函数: 时间逝去nextelapse(毫秒)后, onTimer才开始执行
  timer = window.setInterval("onTimer()", nextelapse);
}
 
// 停止运行
function stop() {
  startB.disabled = false;
  endB.disabled = true;
  window.clearTimeout(timer);
}
 
window.onload = function() {
  endB.disabled = true;
}
 
// 倒计时函数
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;
 
// 清除上一次的定时器
window.clearInterval(timer);
 
// 自校验系统时间得到时间差, 并由此得到下次所启动的新定时器的时间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;
 
// 启动新的定时器
timer = window.setInterval("onTimer()", nextelapse);
}
</script>

发表评论

电子邮件地址不会被公开。 必填项已用*标注

此站点使用Akismet来减少垃圾评论。了解我们如何处理您的评论数据

Go