The example in this article describes the implementation method of javascript page countdown. Share it with everyone for your reference. The specific implementation method is as follows:
<html> <head> </head> <body> <input type="text" name="mss" id="mss"/> <form action="./index.html"> <input type="text" value="name" name="name"/> </form> <body> </html> <script type="text/javascript"> <!-- window.onload=function(){ daojishi(); } var counttime=120*60;//总秒钟 function daojishi(){ if(counttime>=0){ var ms = counttime%60;//余数 89%60==29秒 var mis = Math.floor(counttime/60);//分钟 if(mis>=60){ var hour=Math.floor(mis/60); mis=Math.floor((counttime-hour*60*60)/60); document.getElementById("mss").value=hour+"小时"+mis+"分"+ms+"秒数"; }else if(mis>=1){ document.getElementById("mss").value=mis+"分"+ms+"秒数"; }else{ document.getElementById("mss").value=ms+"秒数"; } counttime--; vartt = window.setTimeout("daojishi()",1000); }else{ window.clearTimeout(vartt); window.confirm("考试时间结束,请单击提交"); tijiao(); } } function tijiao(){ document.forms[0].submit(); } //--> </script>
I hope this article will be helpful to everyone’s JavaScript programming design.