Public Class uStringClass uString
Private Shared gEncoding As System.Text.Encoding = System.Text.Encoding.GetEncoding("GB2312")

Public Shared Property Encoding()Property Encoding() As System.Text.Encoding
Get
Return gEncoding
End Get
Set(ByVal value As System.Text.Encoding)
gEncoding = value
End Set
End Property

Public Shared Function Length()Function Length(ByVal s As String) As Integer
Return gEncoding.GetByteCount(s)
End Function

Public Shared Function PadLeft()Function PadLeft(ByVal s As String, ByVal totalWidth As Integer, ByVal paddingChar As Char) As String
Return s.PadLeft(totalWidth + s.Length - Length(s), paddingChar)
End Function

Public Shared Function PadLeft()Function PadLeft(ByVal s As String, ByVal totalWidth As Integer) As String
Return s.PadLeft(totalWidth + s.Length - Length(s))
End Function

Public Shared Function PadRight()Function PadRight(ByVal s As String, ByVal totalWidth As Integer, ByVal paddingChar As Char) As String
Return s.PadRight(totalWidth + s.Length - Length(s), paddingChar)
End Function

Public Shared Function PadRight()Function PadRight(ByVal s As String, ByVal totalWidth As Integer) As String
Return s.PadRight(totalWidth + s.Length - Length(s))
End Function

Public Shared Function SubString()Function SubString(ByVal Line As String, ByVal Index As Integer, ByVal Length As Integer) As String
Return gEncoding.GetString(gEncoding.GetBytes(Line), Index, Length)
End Function

End Class

Private Sub ToolStripButton6_Click()Sub ToolStripButton6_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripButton6.Click
Dim tmp As String = "中国China"
Console.WriteLine(LzmTW.uString.Encoding.EncodingName)

Console.WriteLine(LzmTW.uString.Length(tmp))
Console.WriteLine(tmp.Length)

Console.WriteLine(tmp.Substring(0, 2))
Console.WriteLine(LzmTW.uString.SubString(tmp, 0, 2))

Console.WriteLine(New String("*"c, 20))

Console.WriteLine(LzmTW.uString.PadLeft(tmp, 20, "*"c))
Console.WriteLine(tmp.PadLeft(20, "*"c))

Console.WriteLine(LzmTW.uString.PadRight(tmp, 20, "*"c))
Console.WriteLine(tmp.PadRight(20, "*"c))

Console.WriteLine(LzmTW.uString.PadLeft(tmp, 20))
Console.WriteLine(tmp.PadLeft(20))

Console.WriteLine(LzmTW.uString.PadRight(tmp, 20))
Console.WriteLine(tmp.PadRight(20))

End Sub