一个完整的计算日期相差天数的脚本

最新推荐文章于 2021-05-24 05:48:45 发布

原创最新推荐文章于 2021-05-24 05:48:45 发布 · 540 阅读

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#date #function #360 #脚本 #flash #null

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本文介绍了一个使用JavaScript实现的简单倒计时工具。作者原本打算使用Flash制作，但最终选择了JavaScript来完成任务。该工具能够计算从当前日期到指定日期的时间差，并实时更新显示。

今天需要做一个到计时工具，本想用Flash做的，但水平有限，还是算了，如是在网上找了些资料，拼凑着写了个JS脚本的，凑合着用了，呵呵。

剩余时间：<span id="endtime">0</span> <script type="text/javascript"> var CID = "endtime"; if(window.CID != null) { var iDate = new Date(); var iCurYear = iDate.getFullYear(); var iCurMonth = iDate.getMonth()+1; var iCurDay = iDate.getDate(); var disNum = compareDate(iCurYear+"-"+iCurMonth+"-"+iCurDay,"2011-2-4"); // alert(disNum); // var iTime = document.getElementById(CID).innerText; var iTime = disNum; //var iTime = disNum; var Account; RemainTime(); } function RemainTime() { var iDay,iHour,iMinute,iSecond; var sDay="",sHour="",sMinute="",sSecond="",sTime=""; if (iTime >= 0) { iDay = parseInt(iTime/24/3600); if (iDay > 0) { sDay = iDay + "天"; } iHour = parseInt((iTime/3600)%24); if (iHour > 0){ sHour = iHour + "小时"; } iMinute = parseInt((iTime/60)%60); if (iMinute > 0){ sMinute = iMinute + "分钟"; } iSecond = parseInt(iTime%60); if (iSecond >= 0){ sSecond = iSecond + "秒"; } if ((sDay=="")&&(sHour=="")){ sTime="<span style='color:darkorange'>" + sMinute+sSecond + "</font>"; } else { sTime=sDay+sHour+sMinute+sSecond; } if(iTime==0){ clearTimeout(Account); sTime="<span style='color:green'>时间到了！</span>"; } else { Account = setTimeout("RemainTime()",1000); } iTime=iTime-1; } else { sTime="<span style='color:red'>倒计时结束！</span>"; } document.getElementById(CID).innerHTML = sTime; } //判断年份是否是闰年 function isLeapYear(year){ if(year % 4 == 0 && ((year % 100 != 0) || (year % 400 == 0))) { return true; } return false; } //判断前后两个日期 function validatePeriod(fyear,fmonth,fday,byear,bmonth,bday){ if(fyear < byear){ return true; }else if(fyear == byear){ if(fmonth < bmonth){ return true; } else if (fmonth == bmonth){ if(fday <= bday){ return true; }else { return false; } } else { return false; } }else { return false; } } //计算两个日期的差值 function compareDate(date1,date2) { var nowdate = new Date(); var regexp=/^(/d{1,4})[-|/.]{1}(/d{1,2})[-|/.]{1}(/d{1,2})$/; var monthDays=[0,3,0,1,0,1,0,0,1,0,0,1]; regexp.test(date1); var date1Year=RegExp.$1; var date1Month=RegExp.$2; var date1Day=RegExp.$3; var date1Hour = nowdate.getHours(); var date1Minute = nowdate.getMinutes(); var date1Second = nowdate.getSeconds(); regexp.test(date2); var date2Year=RegExp.$1; var date2Month=RegExp.$2; var date2Day=RegExp.$3; if(validatePeriod(date1Year,date1Month,date1Day,date2Year,date2Month,date2Day)) { firstDate=new Date(date1Year,date1Month,date1Day); secondDate=new Date(date2Year,date2Month,date2Day); result=Math.floor((secondDate.getTime()-firstDate.getTime())/(1000*3600*24)); //result=Math.floor((secondDate.getTime()-firstDate.getTime())); //alert((secondDate.getTime()-firstDate.getTime())); for(j=date1Year;j<=date2Year;j++){ if(isLeapYear(j)){ monthDays[1]=2; }else{ monthDays[1]=3; } for(i=date1Month-1;i<date2Month;i++){ result=result-monthDays[i]; } } result = result*24*3600 + (24-date1Hour)*3600 + (60-date1Minute)*60+(60-date1Second); return result; }else{ return 'the first field must before the second date.'; } } </script>