BitArray.Not 方法

定義

命名空間:

System.Collections

組件:

netstandard.dll, System.Collections.dll

來源:

BitArray.cs

將當前 BitArray中的所有位元值反轉，使得設定為 的 true 元素變 false為 ，而設定為 的 false 元素改為 true。

public:
 System::Collections::BitArray ^ Not();

public System.Collections.BitArray Not();

member this.Not : unit -> System.Collections.BitArray

Public Function Not () As BitArray

傳回

BitArray

目前的實例位元值是反轉的。

範例

以下程式碼範例說明如何將 NOT 套用到 BitArray。

using System;
using System.Collections;
public class SamplesBitArray  {

   public static void Main()  {

      // Creates and initializes two BitArrays of the same size.
      BitArray myBA1 = new BitArray( 4 );
      BitArray myBA2 = new BitArray( 4 );
      myBA1[0] = myBA1[1] = false;
      myBA1[2] = myBA1[3] = true;
      myBA2[0] = myBA2[2] = false;
      myBA2[1] = myBA2[3] = true;

      // Performs a bitwise NOT operation between BitArray instances of the same size.
      Console.WriteLine( "Initial values" );
      Console.Write( "myBA1:" );
      PrintValues( myBA1, 8 );
      Console.Write( "myBA2:" );
      PrintValues( myBA2, 8 );
      Console.WriteLine();

      myBA1.Not();
      myBA2.Not();

      Console.WriteLine( "After NOT" );
      Console.Write( "myBA1:" );
      PrintValues( myBA1, 8 );
      Console.Write( "myBA2:" );
      PrintValues( myBA2, 8 );
      Console.WriteLine();
   }

   public static void PrintValues( IEnumerable myList, int myWidth )  {
      int i = myWidth;
      foreach ( Object obj in myList ) {
         if ( i <= 0 )  {
            i = myWidth;
            Console.WriteLine();
         }
         i--;
         Console.Write( "{0,8}", obj );
      }
      Console.WriteLine();
   }
}


/*
This code produces the following output.

Initial values
myBA1:   False   False    True    True
myBA2:   False    True   False    True

After NOT
myBA1:    True    True   False   False
myBA2:    True   False    True   False

*/

Imports System.Collections

Public Class SamplesBitArray    
    
    Public Shared Sub Main()
        
        ' Creates and initializes two BitArrays of the same size.
        Dim myBA1 As New BitArray(4)
        Dim myBA2 As New BitArray(4)
        myBA1(0) = False
        myBA1(1) = False
        myBA1(2) = True
        myBA1(3) = True
        myBA2(0) = False
        myBA2(2) = False
        myBA2(1) = True
        myBA2(3) = True
        
        ' Performs a bitwise NOT operation between BitArray instances of the same size.
        Console.WriteLine("Initial values")
        Console.Write("myBA1:")
        PrintValues(myBA1, 8)
        Console.Write("myBA2:")
        PrintValues(myBA2, 8)
        Console.WriteLine()
        
        myBA1.Not()
        myBA2.Not()
        
        Console.WriteLine("After NOT")
        Console.Write("myBA1:")
        PrintValues(myBA1, 8)
        Console.Write("myBA2:")
        PrintValues(myBA2, 8)
        Console.WriteLine()
    End Sub    
    
    Public Shared Sub PrintValues(myList As IEnumerable, myWidth As Integer)
        Dim i As Integer = myWidth
        Dim obj As [Object]
        For Each obj In  myList
            If i <= 0 Then
                i = myWidth
                Console.WriteLine()
            End If
            i -= 1
            Console.Write("{0,8}", obj)
        Next obj
        Console.WriteLine()
    End Sub

End Class


' This code produces the following output.
' 
' Initial values
' myBA1:    False    False    True    True
' myBA2:    False    True    False    True
' 
' After NOT
' myBA1:    True    True    False    False
' myBA2:    True    False    True    False

備註

此方法是一個 O(n) 運算，其中 n 為 Count。