A. 倒計時html代碼
倒計時的html代碼：
<!DOCTYPEHTML>
<html>
<head>
<metacharset="utf-8">
<title>CSS3圓環倒計時-源碼搜藏網</title>
<style>
.pie{width:200px;height:200px;background-color:blue;border-radius:100px;position:absolute;}
.pie1{clip:rect(0px,200px,200px,100px);-o-transform:rotate(0deg);-moz-transform:rotate(0deg);-webkit-transform:rotate(0deg);background:-moz-radial-gradient(20%50%0deg,#333,#0000ff);background:-webkit-gradient(radial,100100,0,100100,110,from(#000),to(#0000ff));}
.pie2{clip:rect(0px,100px,200px,0px);-o-transform:rotate(0deg);-moz-transform:rotate(0deg);-webkit-transform:rotate(0deg);background:-moz-radial-gradient(80%50%0deg,#333,#0000ff);background:-webkit-gradient(radial,100100,0,100100,110,from(#000),to(#0000ff));}
.hold{width:200px;height:200px;position:absolute;z-index:1;}
.hold1{clip:rect(0px,200px,200px,100px);}
.hold2{clip:rect(0px,100px,200px,0px);}
.bg{width:200px;height:200px;background-color:red;border-radius:100px;position:absolute;box-shadow:0px0px8px#333;background:-moz-radial-gradient(0%50%0deg,#900,#ff0000);background:-webkit-gradient(radial,100100,0,100100,110,from(#900),to(#ff0000));}
.time{width:160px;height:160px;margin:20px0020px;background-color:#fff;border-radius:100px;position:absolute;z-index:1;box-shadow:0px0px8px#333inset;text-align:center;line-height:160px;font-family:"BookAntiqua",Palatino,serif;font-size:35px;font-weight:bold;text-shadow:1px1px3px#333;}
.timeem{background:#fff;position:absolute;top:62px;left:12px;height:18px;width:140px;opacity:0.4;}
</style>
</head>
<body>
<divclass="holdhold1">
<divclass="piepie1"></div>
</div>
<divclass="holdhold2">
<divclass="piepie2"></div>
</div>
<divclass="bg"></div>
<divclass="time"><span></span><em></em></div>
<scriptsrc="http://www.codefans.net/ajaxjs/jquery-1.6.2.min.js"></script>
<script>
i=0;
j=0;
count=0;
MM=4;
SS=59;
MS=9;
totle=(MM+1)*600;
d=180*(MM+1);
MM="0"+MM;
functionshowTime(){
totle=totle-1;
if(totle==0){
clearInterval(s);
clearInterval(t1);
clearInterval(t2);
$(".pie2").css("-o-transform","rotate("+d+"deg)");
$(".pie2").css("-moz-transform","rotate("+d+"deg)");
$(".pie2").css("-webkit-transform","rotate("+d+"deg)");
}else{
if(totle>0&&MS>0){
MS=MS-1;
if(MS<10){MS="0"+MS};
};
if(MS==0&&SS>0){
MS=10;
SS=SS-1;
if(SS<10){SS="0"+SS};
};
if(SS==0&&MM>0){
SS=60;
MM=MM-1;
if(MM<10){MM="0"+MM};
};
};
$(".timespan").html(MM+":"+SS+":"+MS);
};
s=setInterval("showTime()",100);
functionstart1(){
i=i+0.6;
count=count+1;
if(count==300){
count=0;
clearInterval(t1);
t2=setInterval("start2()",100);
};
$(".pie1").css("-o-transform","rotate("+i+"deg)");
$(".pie1").css("-moz-transform","rotate("+i+"deg)");
$(".pie1").css("-webkit-transform","rotate("+i+"deg)");
};
functionstart2(){
j=j+0.6;
count=count+1;
if(count==300){
count=0;
clearInterval(t2);
t1=setInterval("start1()",100);
};
$(".pie2").css("-o-transform","rotate("+j+"deg)");
$(".pie2").css("-moz-transform","rotate("+j+"deg)");
$(".pie2").css("-webkit-transform","rotate("+j+"deg)");
};
t1=setInterval("start1()",100);
</script>
<inputonclick="window.open('view-source:'+window.location.href)"type="button"value="查看源代碼"style="position:absolute;right:0;top:0;width:80px;height:30px;">
</body>
</html>
直接復制代碼，創建html文件，然後復制進去，就可以看到效果了。
B. 時間倒計時代碼
這是用VB寫的,需在窗體上放一個label控制項,如果你要用到自己程序里,裡面還需加一些大小判斷,請自己完善:
Private Sub Timer1_Timer()
Dim aa As Date
Dim bb As Date
aa = Now '一般用當前時間就可以了
bb = CDate("2006-11-30 11:38:33") '將來的時間
Label1.Caption = Year(bb) - Year(aa) & "年" & Month(bb) - Month(aa) & "月" & Day(bb) - Day(aa) & "天" & Hour(bb) - Hour(aa) & "小時" & Minute(bb) - Minute(aa) & "分鍾" & Second(bb) - Second(aa) & "秒鍾"
End Sub