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如果我想从 db 中检索日期和时间并以格式显示

“2 分钟前,刚刚,或 6 个月前”有点等等

我该怎么做.. :)

任何人都可以建议我如何做到这一点,

4

2 回答 2

2
string gettime(DateTime updatedat)
{
     string toren = "A moment earlier";
     TimeSpan ts = DateTime.Now - updatedat;
     if (ts.TotalSeconds<60)
     {
          toren = ts.TotalSeconds.ToString() + " seconds ago";
     }
     else if (ts.TotalMinutes < 60)
     {
          toren = ts.TotalMinutes.ToString() + " minutes ago";
     }
     else if (ts.TotalHours < 24)
     {
          toren = ts.TotalHours.ToString() + " hours ago";
     }
     else if (ts.TotalDays < 30)
     {
          toren = ts.TotalDays.ToString() + " days ago";
     }
     else 
     {
          double month = ts.TotalDays / 30;
          if (month<13)
          {
               toren = month.ToString() + " months ago";
          }
          else
          {
               double year = month / 12;
               toren = year.ToString() + " years ago";
          }
     }
     return toren;
}

根据您的需要更改/优化它。

于 2013-06-22T11:09:14.260 回答
1

从这里引用的答案:

const int SECOND = 1;
const int MINUTE = 60 * SECOND;
const int HOUR = 60 * MINUTE;
const int DAY = 24 * HOUR;
const int MONTH = 30 * DAY;

if (delta < 0)
{
  return "not yet";
}
if (delta < 1 * MINUTE)
{
  return ts.Seconds == 1 ? "one second ago" : ts.Seconds + " seconds ago";
}
if (delta < 2 * MINUTE)
{
  return "a minute ago";
}
if (delta < 45 * MINUTE)
{
  return ts.Minutes + " minutes ago";
}
if (delta < 90 * MINUTE)
{
  return "an hour ago";
}
if (delta < 24 * HOUR)
{
  return ts.Hours + " hours ago";
}
if (delta < 48 * HOUR)
{
  return "yesterday";
}
if (delta < 30 * DAY)
{
  return ts.Days + " days ago";
}
if (delta < 12 * MONTH)
{
  int months = Convert.ToInt32(Math.Floor((double)ts.Days / 30));
  return months <= 1 ? "one month ago" : months + " months ago";
}
else
{
  int years = Convert.ToInt32(Math.Floor((double)ts.Days / 365));
  return years <= 1 ? "one year ago" : years + " years ago";
}

是的,我确实引用了。因为这个答案完全符合 PO 的要求。:)

编辑: PO 的问题:还有一件事.. 如果我从数据库中检索日期和时间字段怎么办。我怎么能暗示这个代码?

在不知道您的结构或代码的情况下,它看起来像这样:

var cmd = new SqlCommand(yourConnection);
cmd.CommandText = "SELECT yourDateColumn FROM yourTable";
using (var sr = cmd.ExecuteReader)
{
  if (sr.Read)
  {
    var yourDateTime = sr.GetDateTime(0);
  }
}
于 2013-06-22T11:03:02.823 回答