<!DOCTYPE html> <html> <head> <script src="https://code.jquery.com/jquery-3.1.1.min.js"></script> <style type="text/css"> .bj{ background-color:grey; } #djs{ text-align:center; color:#fff; font-size:20px; margin-top:200px; text-shadow:1px 1px 1px rgba(0,0,0,0.4) } .js-bj { background:#505050; color:yellow; border-radius:5px; width:200px; font-family:Impact; font-size:120px; display:inline-block } #djs div{ font-weight:bold; font-size:80px; margin-bottom:20px; } </style> </head> <body class='bj'> <div id="djs"> </div> </body> <script type="text/javascript"> var sdate = new Date(); //开始时间 var edate = new Date("2020/11/08"); //结束时间 var diffdate = edate.getTime() - sdate.getTime(); //时间差的毫秒数 var sysSecond = diffdate / 1000; console.log(sdate); console.log(edate); console.log(diffdate); var interValObj; function setRemainTime() { if (sysSecond > 0) { var second = Math.floor(sysSecond % 60) >= 10 ? Math.floor(sysSecond % 60) : ('0' + Math.floor(sysSecond % 60));// 计算秒 var minite = Math.floor((sysSecond / 60) % 60) >= 10 ? Math.floor((sysSecond / 60) % 60) : ('0' + Math.floor((sysSecond / 60) % 60));//计算分 var hour = Math.floor((sysSecond / 3600) % 24) >= 10 ? Math.floor((sysSecond / 3600) % 24) : ('0' + Math.floor((sysSecond / 3600) %24));//计算小时 var day = Math.floor((sysSecond / 3600) / 24) >= 10 ? Math.floor((sysSecond / 3600) / 24) : ('0' + Math.floor((sysSecond / 3600) / 24));//计算天 var year = Math.floor((sysSecond / 3600) / 24/365) >= 10 ? Math.floor((sysSecond / 3600) / 24/365) : ('0' + Math.floor((sysSecond / 3600) / 24/365));//计算年 var timeHtml = "<div>距离软考还剩</div><br/><label class='js-bj'>" + day + "</label> 天 <label class='js-bj'>" + hour + "</label> 时 <label class='js-bj'>" + minite + "</label> 分 <label class='js-bj'>" + second + "</label> 秒" try { $("#djs").html(timeHtml); sysSecond--; } catch (e) { } interValObj = window.setTimeout("setRemainTime()", 1000); } else { $("#djs").html("<div style='color:yellow'>软考加油！！！</div><div style='color:yellow'>争取一次通过！！！</div>"); window.clearTimeout(interValObj); } } setRemainTime(); </script> </html>