计算时间跨度

 1, C#版

      /// <summary>       /// LanguageType=1 -->English  ;   2 --> Chinese       /// </summary>       /// <param name="DateTime1"></param>       /// <param name="DateTime2"></param>       /// <param name="iLanguageType"></param>       /// <returns></returns>       public static string TimeDuration(DateTime DateTime1, DateTime DateTime2, int iLanguageType = 1)       {           string dateDiff = "";           TimeSpan ts1 = new TimeSpan(DateTime1.Ticks);           TimeSpan ts2 = new TimeSpan(DateTime2.Ticks);           TimeSpan ts = ts1.Subtract(ts2).Duration();           //if(iLanguageType==2)           //     dateDiff = ts.Days.ToString() + "天" + ts.Hours.ToString() + "小时" + ts.Minutes.ToString() + "分钟" + ts.Seconds.ToString() + "秒";           //else if (iLanguageType == 1)           //     dateDiff = ts.Days.ToString() + "Days" + ts.Hours.ToString() + "Hours" + ts.Minutes.ToString() + "Minutes" + ts.Seconds.ToString() + "Seconds";           if (iLanguageType == 2)           {               if (ts.Days > 0)                   dateDiff += ts.Days.ToString() + " 天 ";               if (ts.Hours > 0)                   dateDiff += ts.Hours.ToString() + " 小时 ";               if (ts.Minutes > 0)                   dateDiff += ts.Minutes.ToString() + " 分钟 ";               if (ts.Seconds > 0)                   dateDiff += ts.Seconds.ToString() + " 秒 ";               if (ts.Milliseconds > 0)                   dateDiff += ts.Milliseconds.ToString() + " 毫秒 ";           }           else if (iLanguageType == 1)           {               if (ts.Days > 0)                   dateDiff += ts.Days.ToString() + " Days ";               if (ts.Hours > 0)                   dateDiff += ts.Hours.ToString() + " Hours ";               if (ts.Minutes > 0)                   dateDiff += ts.Minutes.ToString() + " Minutes ";               if (ts.Seconds > 0)                   dateDiff += ts.Seconds.ToString() + " Seconds ";               if (ts.Milliseconds > 0)                   dateDiff += ts.Milliseconds.ToString() + " Miniseconds ";           }           return dateDiff;       }

2，VB.NET版

    '/// <summary>      ' /// LanguageType=1 -->English  ;   2 --> Chinese      ' /// </summary>      ' /// <param name="DateTime1"></param>      ' /// <param name="DateTime2"></param>      ' /// <param name="iLanguageType"></param>      ' /// <returns></returns>      Public Function TimeDuration(ByVal DateTime1 As DateTime, ByVal DateTime2 As DateTime, Optional ByVal iLanguageType As Integer = 1) As String        Dim dateDiffResult As String = ""        Dim ts1 As TimeSpan = New TimeSpan(DateTime1.Ticks)        Dim ts2 As TimeSpan = New TimeSpan(DateTime2.Ticks)        Dim ts As TimeSpan = ts1.Subtract(ts2).Duration()        ' //if(iLanguageType==2)          ' //     dateDiff = ts.Days.ToString() + "天" + ts.Hours.ToString() + "小时" + ts.Minutes.ToString() + "分钟" + ts.Seconds.ToString() + "秒";          ' //else if (iLanguageType == 1)          ' //     dateDiff = ts.Days.ToString() + "Days" + ts.Hours.ToString() + "Hours" + ts.Minutes.ToString() + "Minutes" + ts.Seconds.ToString() + "Seconds";          If (iLanguageType = 2) Then            If (ts.Days > 0) Then                dateDiffResult += ts.Days.ToString() + " 天 "            End If            If (ts.Hours > 0) Then                dateDiffResult += ts.Hours.ToString() + " 小时 "            End If            If (ts.Minutes > 0) Then                dateDiffResult += ts.Minutes.ToString() + " 分钟 "            End If            If (ts.Seconds > 0) Then                dateDiffResult += ts.Seconds.ToString() + " 秒 "            End If            If (ts.Milliseconds > 0) Then                dateDiffResult += ts.Milliseconds.ToString() + " 毫秒 "            End If        ElseIf (iLanguageType = 1) Then            If (ts.Days > 0) Then                dateDiffResult += ts.Days.ToString() + " Days "            End If            If (ts.Hours > 0) Then                dateDiffResult += ts.Hours.ToString() + " Hours "            End If            If (ts.Minutes > 0) Then                dateDiffResult += ts.Minutes.ToString() + " Minutes "            End If            If (ts.Seconds > 0) Then                dateDiffResult += ts.Seconds.ToString() + " Seconds "            End If            If (ts.Milliseconds > 0) Then                dateDiffResult += ts.Milliseconds.ToString() + " Miniseconds "            End If        End If        Return dateDiffResult    End Function 

http://www.cnblogs.com/qiuweiguo/archive/2011/08/03/2126404.html

http://www.blogjava.net/AndyZhang/archive/2012/05/02/377157.html