1.JS倒數計時器
<p>
<span id="test" style=" display:block; font-size:20px; font-weight:700; color:#0F0;">距離晚會開始時間:</span>
</p>
JS代碼: var timer;
var maxtime = 3600; //一個小時,按秒計算,自己調整!
function CountDown(){
if(maxtime>=0){
time = formatMinutes(maxtime);
document.getElementById("test").innerHTML=time;
if(maxtime !=0){
--maxtime;
}else{
clearInterval(timer);
}
}
}
function formatMinutes(minutes){
var day = parseInt(Math.floor(minutes / 86400));
var hour = day >0? Math.floor((minutes - day*86400)/3600):Math.floor(minutes/3600);
var minute = hour > 0? Math.floor((minutes -day*86400 - hour*3600)/60):Math.floor(minutes/60);
var second = minute > 0? Math.floor(minutes -day*86400 - hour*3600-minute*60):minutes;
var time="";
if (day > 0) time += day + "天";
if (hour > 0) time += hour + "小時";
if (minute > 0) time += minute + "分鐘";
time += second+"秒";
time ="距離晚會結束還有:"+time;
return time;
}
function dateFormate(currentTimeMillis){
var d = new Date();
d.setTime(currentTimeMillis);
// var str = d.Format("yyyy年MM月dd HH:mm:ss");
var str = d.Format("yyyy年MM月dd日 hh:mm:ss");
document.getElementById("test1").innerHTML="轉換後的時間:"+str;
}
$(document).ready(function(){
//dateFormate('1392818810270');
timer = setInterval("CountDown()",1000);
});
上述代碼中,調用setInterval計時器,每個1000毫秒調用一次CountDown()函數,在CountDown實現每隔一秒減少一秒鐘,從而實現到數計時器,全局變量maxtime標示倒計時的時間點,需要轉換爲秒數!
前臺效果爲:
var begindate=new Date();//開始日期
var enddate=new Date('2014', '1', '25','16','10','30');//結束日期
var maxtime = Math.round((enddate.getTime() - begindate.getTime())/1000);