本文實(shí)例為大家分享了js實(shí)現(xiàn)指定時(shí)間倒計(jì)時(shí)的具體代碼，供大家參考，具體內(nèi)容如下
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>計(jì)時(shí)</title> </head> <body> <div style="display: flex; justify-content: center; align-items: center;"> <span>從2019年6月31日至今：</span> <span id="timeid1" style="font-size:35px"></span>天 <span id="timeid2" style="font-size:35px"></span>小時(shí) <span id="timeid3" style="font-size:35px"></span>分 <span id="timeid4" style="font-size:35px"></span>秒 </div> <script type="text/javascript"> function loveTime() { var the=new Date(2019,6,31) var date = new Date() - the var days = Math.floor(date / 1000 / 60 / 60 / 24) // 從這里開始 var daysmod = date - days * 24 *60 * 60 * 1000 var hours = Math.floor(daysmod / 1000 / 60 / 60) var hoursmod = date - (days * 24 *60 * 60 * 1000) - (hours * 1000 * 60 * 60) var minutes = Math.floor(hoursmod / 1000 / 60) var minutesmod = date - (days * 24 *60 * 60 * 1000) - (hours * 1000 * 60 * 60) - (minutes * 1000 * 60) var seconds = Math.floor(minutesmod / 1000) // 到這里結(jié)束，是將總毫秒轉(zhuǎn)化成對(duì)應(yīng)天數(shù)+小時(shí)數(shù)+分鐘數(shù)+秒數(shù)的轉(zhuǎn)換方法 var daysshow = document.getElementById("timdid1"); var ds = document.getElementById("timeid1"); var hs = document.getElementById("timeid2"); var ms = document.getElementById("timeid3"); var ss = document.getElementById("timeid4"); ds.innerHTML = days; hs.innerHTML = hours; ms.innerHTML = minutes; ss.innerHTML = seconds; } // 使用定時(shí)器實(shí)現(xiàn)每一秒寫一次時(shí)間 setInterval("loveTime();",1000); </script></body></html>以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助，也希望大家多多支持武林網(wǎng)。
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