BitVector32.CreateMask 方法

定义

重载

示例

下面的代码示例演示如何创建和使用掩码。

using System;
using System.Collections.Specialized;

public class SamplesBitVector32  {

   public static void Main()  {

      // Creates and initializes a BitVector32 with all bit flags set to FALSE.
      BitVector32 myBV = new BitVector32( 0 );

      // Creates masks to isolate each of the first five bit flags.
      int myBit1 = BitVector32.CreateMask();
      int myBit2 = BitVector32.CreateMask( myBit1 );
      int myBit3 = BitVector32.CreateMask( myBit2 );
      int myBit4 = BitVector32.CreateMask( myBit3 );
      int myBit5 = BitVector32.CreateMask( myBit4 );
      Console.WriteLine( "Initial:               \t{0}", myBV.ToString() );

      // Sets the third bit to TRUE.
      myBV[myBit3] = true;
      Console.WriteLine( "myBit3 = TRUE          \t{0}", myBV.ToString() );

      // Combines two masks to access multiple bits at a time.
      myBV[myBit4 + myBit5] = true;
      Console.WriteLine( "myBit4 + myBit5 = TRUE \t{0}", myBV.ToString() );
      myBV[myBit1 | myBit2] = true;
      Console.WriteLine( "myBit1 | myBit2 = TRUE \t{0}", myBV.ToString() );
   }
}

/*
This code produces the following output.

Initial:                BitVector32{00000000000000000000000000000000}
myBit3 = TRUE           BitVector32{00000000000000000000000000000100}
myBit4 + myBit5 = TRUE  BitVector32{00000000000000000000000000011100}
myBit1 | myBit2 = TRUE  BitVector32{00000000000000000000000000011111}

*/

Imports System.Collections.Specialized


Public Class SamplesBitVector32

   Public Shared Sub Main()

      ' Creates and initializes a BitVector32 with all bit flags set to FALSE.
      Dim myBV As New BitVector32(0)
      
      ' Creates masks to isolate each of the first five bit flags.
      Dim myBit1 As Integer = BitVector32.CreateMask()
      Dim myBit2 As Integer = BitVector32.CreateMask(myBit1)
      Dim myBit3 As Integer = BitVector32.CreateMask(myBit2)
      Dim myBit4 As Integer = BitVector32.CreateMask(myBit3)
      Dim myBit5 As Integer = BitVector32.CreateMask(myBit4)
      Console.WriteLine("Initial:               " + ControlChars.Tab + "{0}", myBV.ToString())
      
      ' Sets the third bit to TRUE.
      myBV(myBit3) = True
      Console.WriteLine("myBit3 = TRUE          " + ControlChars.Tab + "{0}", myBV.ToString())
      
      ' Combines two masks to access multiple bits at a time.
      myBV((myBit4 + myBit5)) = True
      Console.WriteLine("myBit4 + myBit5 = TRUE " + ControlChars.Tab + "{0}", myBV.ToString())
      myBV((myBit1 Or myBit2)) = True
      Console.WriteLine("myBit1 | myBit2 = TRUE " + ControlChars.Tab + "{0}", myBV.ToString())

   End Sub

End Class


' This code produces the following output.
'
' Initial:                BitVector32{00000000000000000000000000000000}
' myBit3 = TRUE           BitVector32{00000000000000000000000000000100}
' myBit4 + myBit5 = TRUE  BitVector32{00000000000000000000000000011100}
' myBit1 | myBit2 = TRUE  BitVector32{00000000000000000000000000011111}

public:
 static int CreateMask();

public static int CreateMask();

static member CreateMask : unit -> int

Public Shared Function CreateMask () As Integer

public:
 static int CreateMask(int previous);

public static int CreateMask(int previous);

static member CreateMask : int -> int

Public Shared Function CreateMask (previous As Integer) As Integer