JavaScript Date对象应用实例分享(2)
三.限时抢
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>date03</title> <style> #date{ position: absolute; font-size: 30px; font-family: '微软雅黑'; top:50%; left:50%; -webkit-transform:translate(-50%,-50%); } </style> </head> <body> <div id="date">2017.10.29</div> <script> window.onload = function(){ showTime(); } function checkTime(i){ return i < 10? "0"+i:i; } function showTime(){ var now = new Date();//获取当前时间 var timedate = new Date("2017/10/30,24:00:00");//截止时间 //getTime() 方法可返回距 1970 年 1 月 1 日之间的毫秒数。 var leftTime = (timedate.getTime() - now.getTime())/1000; var d = checkTime(parseInt(leftTime/(24*60*60))); var h = checkTime(parseInt(leftTime/(60*60)%24)); var m = checkTime(parseInt(leftTime/60%60)); var s = checkTime(parseInt(leftTime%60)); var time = d + "天" + h + "小时" + m + "分钟" + s + "秒"; document.getElementById('date').innerHTML = time; setTimeout(showTime,500); } </script> </body> </html>
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