基于JS实现的倒计时程序实例

剩余时间：<i id="expireTime"></i><script type="text/javascript">  var expire = 2412169;  var expireTime = function(expires){    if(expires > 0){      var second = expires;    }else{      var second = "0 分";      return second;    }    var day = hour = min = "";    if(second>86400){      day = Math.floor(second/86400)+"天 ";      second = second%86400;    }    if(second>3600){      hour = Math.floor(second/3600)+"时 ";      second = second%3600;    }    if(second>60){      min = Math.floor(second/60)+"分 ";      second = second%60;    }    second = second+"秒";    return day+hour+min+second;  }  var timeEle = document.getElementById("expireTime");  var timer = window.setInterval(function(){    timeEle.innerHTML = expireTime(expire--);    if(expire<0){      clearInterval(timer);    }  },1000);</script>