雨笑烟燃

 怎么通过orig.tar.gz和diff.gz产生debian化了的源码？

If you are using the DEB version of webmin, first download the file from the downloads page , or run the command :wget http://prdownloads.sourceforge.net/webadmin/webmin-1.570_all.debthen run the command :dpkg --install webmin_1.570_all.debThe install will be done automatically to /usr/share/webmin, the administration username set toroot and the password to your current root password. You should now be able to login to Webmin at the URL http://localhost:10000/. Or if accessing it remotely, replace localhost with your system's IP address.

格式化数值：有时，我们可能需要将数值以一定的格式来呈现，就需要对数值进行格式化。我们使用格式字符串指定格式。格式字符串采用以下形式：Axx，其中 A 为格式说明符，指定格式化类型，xx 为精度说明符，控制格式化输出的有效位数或小数位数。

public class NumericFormats
{
public static void Main()
   {
// Display string representations of numbers for en-us culture
      CultureInfo ci = new CultureInfo("en-us");
// Output floating point values

      double floating = 10761.937554; Console.WriteLine("C: {0}",
              floating.ToString("C", ci));           // Displays "C: $10,761.94"
      Console.WriteLine("E: {0}",
              floating.ToString("E03", ci));         // Displays "E: 1.076E+004"
      Console.WriteLine("F: {0}",
              floating.ToString("F04", ci));         // Displays "F: 10761.9376"        
      Console.WriteLine("G: {0}", 
              floating.ToString("G", ci));           // Displays "G: 10761.937554"
      Console.WriteLine("N: {0}",
              floating.ToString("N03", ci));         // Displays "N: 10,761.938"
      Console.WriteLine("P: {0}",
              (floating/10000).ToString("P02", ci)); // Displays "P: 107.62 %"
      Console.WriteLine("R: {0}",
              floating.ToString("R", ci));           // Displays "R: 10761.937554"           
      Console.WriteLine();
// Output integral values
      int integral = 8395;
      Console.WriteLine("C: {0}",
              integral.ToString("C", ci));           // Displays "C: $8,395.00"
      Console.WriteLine("D: {0}",
              integral.ToString("D6", ci));          // Displays D: 008395""
      Console.WriteLine("E: {0}",
              integral.ToString("E03", ci));         // Displays "E: 8.395E+003"
      Console.WriteLine("F: {0}",
              integral.ToString("F01", ci));         // Displays "F: 8395.0"   
      Console.WriteLine("G: {0}", 
              integral.ToString("G", ci));           // Displays "G: 8395"
      Console.WriteLine("N: {0}",
              integral.ToString("N01", ci));         // Displays "N: 8,395.0"
      Console.WriteLine("P: {0}",
              (integral/10000).ToString("P02", ci)); // Displays "P: 83.95 %"
      Console.WriteLine("X: 0x{0}",
              integral.ToString("X", ci));           // Displays "X: 0x20CB"
      Console.WriteLine();
   }
}

来源:http://www.cnblogs.com/RickyYan/archive/2009/03/06/1404667.html

今天发现一个很有趣的问题.请看代码:

declare @i int select @i=1declare @l int select @l=dbo.GetSplitLength(@mbh,',') ---字符串分割长度while(@i<=@l)begin insert into #tmbTable(mbhid) select a.mbhid from dockconfig_mbhTable a where a.mbh=dbo.GetSplitOfIndex(@mbh,',',@i)select @i=@i+1end;

-----------------------------------------------

由于dockconfig_mbhTable 表中有上万条数据,执行起来效率低下.经过尝试分析功能的执行时间,发现效率是受函数影响,

但是单独进行函数dbo.GetSplitOfIndex 测试,效率又没有问题.于是稍微修改了下代码:

declare @i int select @i=1declare @l int select @l=dbo.GetSplitLength(@mbh,',')declare @v varchar(20)while(@i<=@l)begin select @v=dbo.GetSplitOfIndex(@mbh,',',@i)insert into #tmbTable(mbhid) select a.mbhid from dockconfig_mbhTable a where a.mbh=@v select @i=@i+1end;  

居然…居然效率提高了好几千倍.记录下以后遇到该问题都在进行查询时进行变量申明分开使用函数.

Structure –>byte

   1:  Public Function RawSerialize(o As Object) As Byte()

   2:          Dim rawSize As Integer = Marshal.SizeOf(o)

   3:          Dim buffer As IntPtr = Marshal.AllocHGlobal(rawSize)

   4:          Marshal.StructureToPtr(o, buffer, False)

   5:          Dim rawDatas As Byte() = New Byte(rawSize) {}

   6:          Marshal.Copy(buffer, rawDatas, 0, rawSize)

   7:          Marshal.FreeHGlobal(buffer)

   8:          Return rawDatas

   9:      End Function

byte—>Structure

   1:  Public Function RawDeserialize(rawdata As Byte(), position As Integer, t As Type) As Object

   2:          Dim rawsize As Integer = Marshal.SizeOf(t)

   3:          If rawsize > rawdata.Length Then

   4:              Return Nothing

   5:          End If

   6:          Dim buffer As IntPtr = Marshal.AllocHGlobal(rawsize)

   7:          Marshal.Copy(rawdata, position, buffer, rawsize)

   8:          Dim retobj As Object = Marshal.PtrToStructure(buffer, t)

   9:          Marshal.FreeHGlobal(buffer)

  10:          Return retobj

  11:      End Function

 Private Sub GridEditExitCheck()
        Try
            Dim p As SourceGrid.Position = Grid1.Selection.ActivePosition
            If p.Row <> -1 AndAlso p.Column <> -1 Then
                Dim c As SourceGrid.CellContext = New SourceGrid.CellContext(Grid2, p)
                '   c.Value = CType(Grid1.Item(p.Row, p.Column).Editor, SourceGrid.Cells.Editors.TextBox).Control.Text
                c.EndEdit(False)
            End If
        Catch ex As Exception
            Exit Try
        End Try
    End Sub

使用CF上的,发现有一个问题,对其更正为:

   1:  Public Sub Load(ByVal bytes As Byte())

   2:              If bytes.Length = 0 Then

   3:                  Exit Sub

   4:              End If

   5:              Try

   6:                  mList.Clear()

   7:                  Dim s As Stream = New MemoryStream(bytes)

   8:                  Dim xmlr As XmlTextReader = New XmlTextReader(s)

   9:                  xmlr.WhitespaceHandling = WhitespaceHandling.None

  10:                  xmlr.MoveToContent()

  11:                  Dim items As DataItems

  12:                  Dim nname As String, nvalue As String, ntype As String = ""

  13:                  xmlr.Read()

  14:                  While (True)

  15:                      If xmlr.LocalName = "ntable" Then

  16:                          Exit While

  17:                      End If

  18:                      xmlr.ReadStartElement("items")

  19:                      items = New DataItems()

  20:                      nname = xmlr.Name()

  21:                      nvalue = xmlr.ReadElementString

  22:                      'ntype=xmlr.reada

  23:                      While (Not xmlr.EOF)

  24:                          items.Add(nname, nvalue)

  25:                          nname = xmlr.Name()

  26:                          If nname = "items" Then Exit While

  27:                          nvalue = xmlr.ReadElementString

  28:                      End While

  29:                      mList.Add(items)

  30:                      xmlr.ReadEndElement()

  31:                  End While

  32:              Catch ex As Exception

  33:                  Exit Try

  34:              End Try

  35:          End Sub

有时添加非官方的源是update后会出现没有公钥的gpg错误提示，说可能会有后门程序等，对于经常update 的来说，听讨厌的。解决的办法是导入公钥，用如下语句：
gpg --keyserver subkeys.pgp.net --recv-keys 提示所缺少的那个公钥
gpg --armor --export 公钥串 | apt-key add -
 

网络上说的那个wwwkeys.eu.pgp.net好像已经不能使用了.

SQL处理字符串相似度函数

本函数严格处理字符串，同位置的字符串相同时才算是相似。结果采用小于等于1的小数表示，越靠近1表示相似度越高。

创建一个批处理文件，用来运行cepb.exe。
可以在Windows CE Platform Builder\5.00\CEPB\BIN\ 目录下创建这个批处理，cepb.exe就在这个路径下，所以不需要写入绝对路径，建立一个TXT文件，输入如下内容：
@ehco
start cepb.exe
exit
@ehco
再另存为一个bat文件，双击运行这个BAT文件就打开的PB就可以正常sysgen了。
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