使用Java的倒数计时器 [英] Countdown Timer using Javascript
本文介绍了使用Java的倒数计时器的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我需要使用Javascript进行在线考试项目的倒数计时器.
Hi,
I need countdown timer in Javascript for Online Exam project.
推荐答案
检查我的代码以了解倒数计时器
Check my code for count down timer
<html xmlns="http://www.w3.org/1999/xhtml"> <head runat="server"> <title></title> <script language ="javascript" > var tim; var min = 20; var sec = 60; var f = new Date(); function f1() { f2(); document.getElementById("starttime").innerHTML = "Your started your Exam at " + f.getHours() + ":" + f.getMinutes(); } function f2() { if (parseInt(sec) > 0) { sec = parseInt(sec) - 1; document.getElementById("showtime").innerHTML = "Your Left Time is :"+min+" Minutes ," + sec+" Seconds"; tim = setTimeout("f2()", 1000); } else { if (parseInt(sec) == 0) { min = parseInt(min) - 1; if (parseInt(min) == 0) { clearTimeout(tim); location.href = "default5.aspx"; } else { sec = 60; document.getElementById("showtime").innerHTML = "Your Left Time is :" + min + " Minutes ," + sec + " Seconds"; tim = setTimeout("f2()", 1000); } } } } </script> </head> <body onload="f1()" > <form id="form1" runat="server"> <div> <table width="100%" align="center"> <tr> <td colspan="2"> <h2>This is head part for showing timer and all other details</h2> </td> </tr> <tr> <td> <div id="starttime"></div><br /> <div id="endtime"></div><br /> <div id="showtime"></div> </td> </tr> <tr> <td> <br /> </td> </tr> </table> <br /> </div> </form> </body> </html>
希望对您有帮助
最好的
I hope this is helpful to you
All the Best
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