📄 13.22 离开某天的时间.htm
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<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>标题页</title>
</head>
<body bgcolor="#fef4d9" onLoad="startclock()">
<SCRIPT LANGUAGE="JavaScript">
//基本变量的定义
var timerID;
var timerRunning = false;
var today = new Date();
var startday = new Date();
var secPerDay = 0;
var minPerDay = 0;
var hourPerDay = 0;
var secsLeft = 0;
var secsRound = 0;
var secsRemain = 0;
var minLeft = 0;
var minRound = 0;
var minRemain = 0;
var timeRemain = 0;
//停止定时器的方法
function stopclock()
{
if(timerRunning)
clearTimeout(timerID);
timerRunning = false;
}
//开始定时器的方法
function startclock()
{
stopclock();
showtime1();
}
//计算时间的方法
function showtime1()
{
startday = new Date("Oct 20, 1949 00:00 EDT"); //创建初始时间
startday.setYear("1949"); //设置年份
today = new Date(); //获取当前时间
secsPerDay = 1000 ; //最终转换为毫秒
minPerDay = 60 * 1000 ; //每分钟的毫秒
hoursPerDay = 60 * 60 * 1000; //每小时的毫秒
PerDay = 24 * 60 * 60 * 1000; //每天的毫秒
/* Seconds */
secsLeft = (today.getTime() - startday.getTime()) / minPerDay; //距今天的分钟数
secsRound = Math.round(secsLeft); //四舍五入
secsRemain = secsLeft - secsRound;
secsRemain = (secsRemain < 0) ? secsRemain = 60 - ((secsRound - secsLeft) * 60) : secsRemain = (secsLeft - secsRound) * 60;
secsRemain = Math.round(secsRemain); //计算取分钟后剩余的秒数
/* 分钟*/
minLeft = ((today.getTime() - startday.getTime()) / hoursPerDay); //距今天的小时数
minRound = Math.round(minLeft); //四舍五入
minRemain = minLeft - minRound;
minRemain = (minRemain < 0) ? minRemain = 60 - ((minRound - minLeft) * 60) : minRemain = ((minLeft - minRound) * 60);
minRemain = Math.round(minRemain - 0.495); //计算取小时后剩余的分钟数
/* 小时 */
hoursLeft = ((today.getTime() - startday.getTime()) / PerDay); //距今天的天数
hoursRound = Math.round(hoursLeft); //四舍五入
hoursRemain = hoursLeft - hoursRound;
hoursRemain = (hoursRemain < 0) ? hoursRemain = 24 - ((hoursRound - hoursLeft) * 24) : hoursRemain = ((hoursLeft - hoursRound) * 24);
hoursRemain = Math.round(hoursRemain - 0.5); //计算取天数后剩余的小时数
/* 天 */
daysLeft = ((today.getTime() - startday.getTime()) / PerDay); //距今天的天数
daysLeft = (daysLeft - 0.5);
daysRound = Math.round(daysLeft); //四舍五入
daysRemain = daysRound;
/* Time */
day_rem = " 天, "
hour_rem = " 小时, "
min_rem = " 分, "
sec_rem = " 秒"
timeRemain = daysRemain + day_rem + hoursRemain + hour_rem + minRemain + min_rem + secsRemain + sec_rem;
document.up.myTxt.value = timeRemain; //使用文本框输出内容
timerID = setTimeout("showtime1()",1000); //每隔1秒更新下时间
timerRunning = true;
}
</SCRIPT>
<FORM NAME="up">
<INPUT TYPE="text" NAME="myTxt" SIZE="47" VALUE="">
</FORM>
<P>
<FONT SIZE=+1 FACE="Arial">
距离建国已经
</FONT>
</body>
</html>
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