javascript-倒计时-(咋个办呢-zgbn)

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javascript-倒计时

下面的代码复制后直接可用
<html><script type="text/javascript">/** * @parame eid 元素ID，将倒计时空间绑定在元素上 * @parame startDateTime 倒计时开始日期时间 countTime = {YY:年，MM:月，DD:日，HH:时，MS:分，SS:秒} * @parame unit 单位，按那个单位倒计时。例如'SS'按秒，'MS'按分；可选参数，默认为'SS' * @parame format 倒计时显示的样式：YYYY-MM-DD HH:MS:SS 或者 MS分:SS秒 可选参数,默认为 HH:MS:SS * return boolean  */function counDownTime(eid,startDateTime,unit,format) {            if(!window._unit && !window._format && !window._eid && !window._count && !window._sumSS && !window.CDate){        if(eid && startDateTime){            window._unit = unit||'SS' ;            window._format = format||'HH:MS:SS' ;            window._eid = eid ;            window._count = window._count||0 ;            window._sumSS = 'SS'==window._unit?1000:'MS'==window._unit?60*1000:'HH'==window._unit?60*60*1000:'DD'==window._unit?24*60*60*1000:1000 ;            window.CDate = new Date(startDateTime.YY,startDateTime.MM-1,startDateTime.DD,startDateTime.HH,startDateTime.MS,startDateTime.SS) ;        }        else{            return false ;        }    }    window._count = window._count+window._sumSS-0 ;    var nowDate = new Date() ;    var setEshow = function(date){        var stime = window._format ;        if(stime.indexOf('YYYY')!=-1){            stime = stime.replace('YYYY', date?date.getFullYear():0) ;        }        if(stime.indexOf('MM')!=-1){            stime = stime.replace('MM', date?date.getMonth()+1:0)        }        if(stime.indexOf('DD')!=-1){            stime = stime.replace('DD', date?date.getDate():0)        }        if(stime.indexOf('HH')!=-1){            stime = stime.replace('HH', date?date.getHours():0)        }        if(stime.indexOf('MS')!=-1){            stime = stime.replace('MS', date?date.getMinutes():0)        }        if(stime.indexOf('SS')!=-1){            stime = stime.replace('SS', date?date.getSeconds():0)        }        return stime ;    } ;    var destructor = function(){        window._unit = null ;        window._format = null ;        window._eid = null ;        window._count = null ;        window._sumSS = null ;        window.CDate = null ;    }    if(nowDate.getTime() >= window.CDate.getTime()){        document.getElementById(window._eid).innerHTML = setEshow(null);        destructor() ;        return true ;    }    else{        document.getElementById(window._eid).innerHTML = setEshow(new Date(window.CDate.getTime()-window._count));    }    setTimeout("counDownTime()",window._sumSS) ;}</script><body><h1>倒计时</h1>   <span id='time' style='font-size:40px;color:#F00'>05.00</span><span id='time' style='font-size:40px;color:#F00'>s</span>   <input type=button value='倒计时' onclick='counDownTime("time",{YY:2011,MM:7,DD:28,HH:15,MS:0,SS:0},null)' /></body></html>
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