js简洁倒计时实现代码_

1、js简洁倒计时实现代码_ 这篇文章主要介绍了js简洁倒计时实现代码,涉及JavaScript时间与日期的相关运算技巧,需要的伴侣可以参考下 本文实例讲解并描述了js简洁倒计时实现代码。分享给大家供大家参考，具体如下： div class=time 距离活动结束还有span id=day/span天 span id=hours/span小时 span id=min/span分 span id=sec/span秒 /div script type=text/javascript var day = document.getElementById(day); var hours = document

2、.getElementById(hours); var min = document.getElementById(min); var sec = document.getElementById(sec); var DifferenceHour = -1; var DifferenceMinute = -1; var DifferenceSecond = -1; /var Tday = new Date(07 20,2021 10:00:00) /*倒计时时间点-留意格式 var Tday = new Date(07/20/2021 10:00:00); /IE:月/日/年 var daysm

3、s = 24 * 60 * 60 * 1000; var hoursms = 60 * 60 * 1000; var Secondms = 60 * 1000; var microsecond = 1000; function clock () var time = new Date(); var hour = time.getHours(); var minute = time.getMinutes(); var second = time.getSeconds(); var timevalue = + (hour 12) ? hour-12:hour); timevalue += (min

4、ute 10) ? :0:) + minute; timevalue += (second 10) ? :0:) + second; timevalue += (hour 12) ? PM: AM); / document.formnow.now.value = timevalue var convertHour = DifferenceHour; var convertMinute = DifferenceMinute; var convertSecond = DifferenceSecond; var Diffms = Tday.getTime() - time.getTime(); Di

5、fferenceHour = Math.floor(Diffms / daysms); Diffms -= DifferenceHour * daysms; DifferenceMinute = Math.floor(Diffms / hoursms); Diffms -= DifferenceMinute * hoursms; DifferenceSecond = Math.floor(Diffms / Secondms); Diffms -= DifferenceSecond * Secondms; var dSecs = Math.floor(Diffms / microsecond);

6、 if (convertHour != DifferenceHour) day.innerHTML = DifferenceHour; if (convertMinute != DifferenceMinute) hours.innerHTML = DifferenceMinute; if (convertSecond != DifferenceSecond) min.innerHTML = DifferenceSecond; sec.innerHTML = dSecs; / document.formnow.Tnow.value= DifferenceHour DifferenceMinute + Diff