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JAVASCRIPT实现普通日期转换多少小时前、多少分钟前、多少秒

文章来源：365jz.com 点击数：276 更新时间：2009-09-14 10:26 参与评论

貌似最近很流行这个，就写了个js函数实现之

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
  <TITLE> New Document </TITLE>
  <META NAME="Generator" CONTENT="EditPlus">
  <META NAME="Author" CONTENT="">
  <META NAME="Keywords" CONTENT="">
  <META NAME="Description" CONTENT="">
  <script language="javascript">
  function stringToDateTime(postdate)
  {
    var second = 1000;
    var minutes = second*60;
    var hours = minutes*60;
    var days = hours*24;
    var months = days*30;
    var twomonths = days*365;
    var myDate = new Date(Date.parse(postdate));
    if (isNaN(myDate))
    {
        myDate =new Date(postdate.replace(/-/g, "/"));
    }
    var nowtime = new Date();
    var longtime =nowtime.getTime()- myDate.getTime();
    var showtime = 0;
    if( longtime > months*2 )
    {
        return postdate;
    }
    else if (longtime > months)
    {
        return "1个月前";
    }
    else if (longtime > days*7)
    {
        return ("1周前");
    }
    else if (longtime > days)
    {
        return(Math.floor(longtime/days)+"天前");
    }
    else if ( longtime > hours)
    {
        return(Math.floor(longtime/hours)+"小时前");
    }
    else if (longtime > minutes)
    {
        return(Math.floor(longtime/minutes)+"分钟前");
    }
    else if (longtime > second)
    {
        return(Math.floor(longtime/second)+"秒前");
    }else
    {
        return(longtime+" error ");
    }
   }

    document.write(stringToDateTime("2009-05-24 15:05:00"));

  </script>
</HEAD>
<BODY >
</BODY>
</HTML>

网上有用C#后台实现的方法，为方便查看就转贴到下面吧：）

public string DateStringFromNow(DateTime dt)
{
TimeSpan span = DateTime.Now - dt;
if (span.TotalDays >60)
{
return dt.ToShortDateString();
}
else
if ( span.TotalDays >30 )
{
return
"1个月前";
}
else
if (span.TotalDays >14)
{
return
"2周前";
}
else
if (span.TotalDays >7)
{
return
"1周前";
}
else
if (span.TotalDays >1)
{
return
string.Format("{0}天前", (int)Math.Floor(span.TotalDays));
}
else
if (span.TotalHours >1)
{
return
string.Format("{0}小时前", (int)Math.Floor(span.TotalHours));
}
else
if (span.TotalMinutes >1)
{
return
string.Format("{0}分钟前", (int)Math.Floor(span.TotalMinutes));
}
else
if (span.TotalSeconds >=1)
{
return
string.Format("{0}秒前", (int)Math.Floor(span.TotalSeconds));
}
else
{
return
"1秒前";
}
}