js实现倒计时
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>倒计时</title> <script> window.onload = function () { var future = new Date('2018/07/31 16:10:00').getTime(); function fn() { var now = new Date().getTime(); //剩余总秒数 var sTime = parseInt((future-now)/1000); /*console.log(sTime);*/ //剩余天数 var d = parseInt(sTime/3600/24); /*console.log(d);*/ //剩余小时数 var h = parseInt(sTime/3600%24); /*console.log(h);*/ //剩余分钟 var m = parseInt(sTime/60%60); /*console.log(m);*/ //剩余秒数 var s = parseInt(sTime%60); /*console.log(s);*/ var demo = document.getElementById("demo"); demo.innerHTML = "剩余："+d+"天"+h+"时"+m+"分"+s+"秒"; } setInterval(fn,1000); } </script> </head> <body> <div id="demo"></div> </body> </html>
