asp.net 格式化显示时间为几个月,几天前,几小时前,几分钟前,或几秒前

/// <summary>

/// 格式化显示时间为几个月,几天前,几小时前,几分钟前,或几秒前

/// </summary>

/// <param name="dt">要格式化显示的时间</param>

/// <returns>几个月,几天前,几小时前,几分钟前,或几秒前</returns>

public static 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";

}

}

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