DOCTYPEhtml><htmllang="en"><head><metacharset="UTF-8"><metaname="viewport"content="width=device-width, initial-scale=1.0"><title>倒计时title><script>functioncutDown(times){// 当前时间到1970年的毫秒数var nowTime =+newDate();// 未来时间到1970的毫秒数var inputTime =+newDate(times);// 转化为秒var times =(inputTime - nowTime)/1000;// 天数var d =parseInt(times /60/60/24);d = d <10?'0'+ d : d ;// 小时var h =parseInt(times /60/60%24);h = h <10?'0'+ h : h ;// 分钟var m =parseInt(times /60%60);m = m <10?'0'+ m : m ;// 秒var s =parseInt(times %60);s = s <10?'0'+ s : s ;return d +'天'+ h +'时'+ m +'分'+ s +'秒';}console.log(cutDown('2021-9-7 18:00:00'));script>head><body>body>html>
