' 导入命名空间
Imports System.Globalization

Module Example
   Public Sub Main()
      ' Define an array of CultureInfo objects.
      Dim ci() As CultureInfo = { New CultureInfo("en-US"), _
                                  New CultureInfo("fr-FR"), _
                                  CultureInfo.InvariantCulture } 
      Dim value As ULong = 18709243
      Console.WriteLine("  {0,12}   {1,12}   {2,12}", _
                        GetName(ci(0)), GetName(ci(1)), GetName(ci(2))) 
      Console.WriteLine("  {0,12}   {1,12}   {2,12}", _
                        value.ToString(ci(0)), value.ToString(ci(1)), value.ToString(ci(2)))            
      
   End Sub
   
   Private Function GetName(ci As CultureInfo) As String
      If ci.Equals(CultureInfo.InvariantCulture) Then
         Return "Invariant"
      Else
         Return ci.Name
      End If   
   End Function
End Module

' 导入命名空间
Imports System.Globalization

Module Example
   Public Sub Main()
      ' Define cultures whose formatting conventions are to be used.
      Dim cultures() As CultureInfo = {CultureInfo.CreateSpecificCulture("en-US"), _
                                       CultureInfo.CreateSpecificCulture("fr-FR"), _
                                       CultureInfo.CreateSpecificCulture("es-ES") }
      Dim specifiers() As String = {"G", "C", "D4", "E2", "F", "N", "P", "X2"} 
      Dim value As ULong = 22224021
      
      For Each specifier As String In specifiers
         For Each culture As CultureInfo In Cultures
            Console.WriteLine("{0,2} format using {1} culture: {2, 18}", _ 
                              specifier, culture.Name, _
                              value.ToString(specifier, culture))

         Next
         Console.WriteLine()
      Next
   End Sub
End Module

' 导入命名空间
Imports System.Globalization

Module Example
   Public Sub Main()
      Dim value As ULong = 217960834 
      Dim specifiers() As String = { "G", "C", "D3", "E2", "e3", "F", _
                                     "N", "P", "X", "000000.0", "#.0", _
                                     "00000000;(0);**Zero**" }
      
      For Each specifier As String In specifiers
         Console.WriteLine("{0}: {1}", specifier, value.ToString(specifier))
      Next
   End Sub
End Module

Module Example
   Public Sub Main()
      Dim value As ULong = 163249057
      ' Display value using default ToString method.
      Console.WriteLine(value.ToString())            
      Console.WriteLine()
      
      ' Define an array of format specifiers.
      Dim formats() As String = { "G", "C", "D", "F", "N", "X" }
      ' Display value using the standard format specifiers.
      For Each format As String In formats
         Console.WriteLine("{0} format specifier: {1,16}", _
                           format, value.ToString(format))         
      Next
   End Sub
End Module