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js网页实时倒计时精确到秒级

JS网页实时 精确 倒计时
2023-06-13 09:15:17 时间
一个很好用的js倒计时!网页实时倒计时,精确到秒级,和天数倒计时原理一样。js倒计时一般用于商城网站团购,特卖,很多地方都可用到!希望能够给大家带来帮助!

效果如下:
 
复制代码代码如下:

<!DOCTYPEhtml>
<html>
<head>
<metahttp-equiv="Content-Type"content="text/html;charset=utf-8"/>
<styletype="text/css">
.leave_time_font{margin-left:35%;}
#fo{margin-left:32%;}
</style>
<title>WoYaoNi.CN-倒计时</title>
</head>
<body>
<h1>WoYaoNi.CN</h1>
<scriptsrc="./jquery.js"></script>
<scripttype="text/javascript">
$(document).ready(function(e){
var_countSeconds=0;
function_countDown(){
_countSeconds++;
$("input.surplustime").each(function(index,element){
var$this=$(this);
var_totalTime=Number($this.val())-_countSeconds;
var_day=parseInt(_totalTime/86400);
var_hours=parseInt(_totalTime%86400/3600);
var_minutes=parseInt(_totalTime%86400%3600/60);
var_seconds=parseInt(_totalTime%86400%3600%60);
var_strLite="<spanclass="day">"+_day+"</span>天<spanclass="hour">"+_hours+"</span>小时<spanclass="minutes">"+_minutes+"</span>分<spanclass="seconds">"+_seconds+"</span>秒";
var_str="倒计时:"+_strLite;
if($this.next("p.daojishi").length>0){
$this.next("p.daojishi").html(_str);
}elseif($this.next("p.leave_time_font").length>0){
$this.next("p.leave_time_font").html(_strLite);
}
});
}
setInterval(_countDown,1000);
})
</script>
</head>
<body>
<?php
ini_set("date.timezone","Asia/Shanghai");
$currenttime=time();
$a=strtotime("2014-2-1400:00");
$b=$a-$currenttime;
?>

<divid="djs">
<divid="fo">小伙伴们距离情人节只剩:</div>
<inputtype="hidden"name="surplustime"class="surplustime"value="<?phpecho$b;?>"/>
<pclass="leave_time_font"><spanclass="day">0</span>天<spanclass="hour">0</span>小时<spanclass="minutes">0</span>分<spanclass="seconds">0</span>秒</p>
</div>
</body>
</html>