ArrayList.CopyTo Метод

Определение

Копирует список ArrayList или его часть в одномерный массив.Copies the ArrayList or a portion of it to a one-dimensional array.

Перегрузки

CopyTo(Array)

Копирует весь список ArrayList в совместимый одномерный массив Array, начиная с начального элемента целевого массива.Copies the entire ArrayList to a compatible one-dimensional Array, starting at the beginning of the target array.

CopyTo(Array, Int32)

Копирует целый массив ArrayList в совместимый одномерный массив Array, начиная с заданного индекса целевого массива.Copies the entire ArrayList to a compatible one-dimensional Array, starting at the specified index of the target array.

CopyTo(Int32, Array, Int32, Int32)

Копирует диапазон элементов из списка ArrayList в совместимый одномерный массив Array, начиная с указанного индекса целевого массива.Copies a range of elements from the ArrayList to a compatible one-dimensional Array, starting at the specified index of the target array.

CopyTo(Array)

Копирует весь список ArrayList в совместимый одномерный массив Array, начиная с начального элемента целевого массива.Copies the entire ArrayList to a compatible one-dimensional Array, starting at the beginning of the target array.

public:
 virtual void CopyTo(Array ^ array);
public virtual void CopyTo (Array array);
abstract member CopyTo : Array -> unit
override this.CopyTo : Array -> unit

Параметры

array
Array

Одномерный массив Array, в который копируются элементы из интерфейса ArrayList.The one-dimensional Array that is the destination of the elements copied from ArrayList. Массив Array должен иметь индексацию, начинающуюся с нуля.The Array must have zero-based indexing.

Исключения

arraynull.array is null.

Массив array является многомерным.array is multidimensional.

-или--or- Число элементов в исходном массиве ArrayList больше числа элементов, которые может содержать массив назначения array.The number of elements in the source ArrayList is greater than the number of elements that the destination array can contain.

Тип исходного массива ArrayList не может быть автоматически приведен к типу массива назначения array.The type of the source ArrayList cannot be cast automatically to the type of the destination array.

Примеры

В следующем примере кода показано, как скопировать ArrayList в одномерный System.Array.The following code example shows how to copy an ArrayList into a one-dimensional System.Array.

using namespace System;
using namespace System::Collections;
void PrintValues( array<String^>^myArr, char mySeparator );
int main()
{
   
   // Creates and initializes the source ArrayList.
   ArrayList^ mySourceList = gcnew ArrayList;
   mySourceList->Add( "three" );
   mySourceList->Add( "napping" );
   mySourceList->Add( "cats" );
   mySourceList->Add( "in" );
   mySourceList->Add( "the" );
   mySourceList->Add( "barn" );
   
   // Creates and initializes the one-dimensional target Array.
   array<String^>^myTargetArray = gcnew array<String^>(15);
   myTargetArray[ 0 ] = "The";
   myTargetArray[ 1 ] = "quick";
   myTargetArray[ 2 ] = "brown";
   myTargetArray[ 3 ] = "fox";
   myTargetArray[ 4 ] = "jumps";
   myTargetArray[ 5 ] = "over";
   myTargetArray[ 6 ] = "the";
   myTargetArray[ 7 ] = "lazy";
   myTargetArray[ 8 ] = "dog";
   
   // Displays the values of the target Array.
   Console::WriteLine( "The target Array contains the following (before and after copying):" );
   PrintValues( myTargetArray, ' ' );
   
   // Copies the second element from the source ArrayList to the target ArrayList starting at index 7.
   mySourceList->CopyTo( 1, myTargetArray, 7, 1 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target ArrayList starting at index 6.
   mySourceList->CopyTo( myTargetArray, 6 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target ArrayList starting at index 0.
   mySourceList->CopyTo( myTargetArray );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
}

void PrintValues( array<String^>^myArr, char mySeparator )
{
   for ( int i = 0; i < myArr->Length; i++ )
      Console::Write( "{0}{1}", mySeparator, myArr[ i ] );
   Console::WriteLine();
}

/* 
 This code produces the following output.
 
 The target Array contains the following (before and after copying):
  The quick brown fox jumps over the lazy dog
  The quick brown fox jumps over the napping dog
  The quick brown fox jumps over three napping cats in the barn
  three napping cats in the barn three napping cats in the barn
 */
using System;
using System.Collections;
public class SamplesArrayList  {

   public static void Main()  {

      // Creates and initializes the source ArrayList.
      ArrayList mySourceList = new ArrayList();
      mySourceList.Add( "three" );
      mySourceList.Add( "napping" );
      mySourceList.Add( "cats" );
      mySourceList.Add( "in" );
      mySourceList.Add( "the" );
      mySourceList.Add( "barn" );

      // Creates and initializes the one-dimensional target Array.
      String[] myTargetArray = new String[15];
      myTargetArray[0] = "The";
      myTargetArray[1] = "quick";
      myTargetArray[2] = "brown";
      myTargetArray[3] = "fox";
      myTargetArray[4] = "jumps";
      myTargetArray[5] = "over";
      myTargetArray[6] = "the";
      myTargetArray[7] = "lazy";
      myTargetArray[8] = "dog";

      // Displays the values of the target Array.
      Console.WriteLine( "The target Array contains the following (before and after copying):" );
      PrintValues( myTargetArray, ' ' );

      // Copies the second element from the source ArrayList to the target Array starting at index 7.
      mySourceList.CopyTo( 1, myTargetArray, 7, 1 );

      // Displays the values of the target Array.
      PrintValues( myTargetArray, ' ' );

      // Copies the entire source ArrayList to the target Array starting at index 6.
      mySourceList.CopyTo( myTargetArray, 6 );

      // Displays the values of the target Array.
      PrintValues( myTargetArray, ' ' );

      // Copies the entire source ArrayList to the target Array starting at index 0.
      mySourceList.CopyTo( myTargetArray );

      // Displays the values of the target Array.
      PrintValues( myTargetArray, ' ' );
   }

   public static void PrintValues( String[] myArr, char mySeparator )  {
      for ( int i = 0; i < myArr.Length; i++ )
         Console.Write( "{0}{1}", mySeparator, myArr[i] );
      Console.WriteLine();
   }

}


/* 
This code produces the following output.

The target Array contains the following (before and after copying):
 The quick brown fox jumps over the lazy dog
 The quick brown fox jumps over the napping dog
 The quick brown fox jumps over three napping cats in the barn
 three napping cats in the barn three napping cats in the barn
*/ 

Imports System.Collections

Public Class SamplesArrayList    
    
    Public Shared Sub Main()
        
        ' Creates and initializes the source ArrayList.
        Dim mySourceList As New ArrayList()
        mySourceList.Add("three")
        mySourceList.Add("napping")
        mySourceList.Add("cats")
        mySourceList.Add("in")
        mySourceList.Add("the")
        mySourceList.Add("barn")
        
        ' Creates and initializes the one-dimensional target Array.
        Dim myTargetArray(14) As String
        myTargetArray(0) = "The"
        myTargetArray(1) = "quick"
        myTargetArray(2) = "brown"
        myTargetArray(3) = "fox"
        myTargetArray(4) = "jumps"
        myTargetArray(5) = "over"
        myTargetArray(6) = "the"
        myTargetArray(7) = "lazy"
        myTargetArray(8) = "dog"
        
        ' Displays the values of the target Array.
        Console.WriteLine("The target Array contains the following " _
           + "(before and after copying):")
        PrintValues(myTargetArray, " "c)
        
        ' Copies the second element from the source ArrayList to the target
        ' Array starting at index 7.
        mySourceList.CopyTo(1, myTargetArray, 7, 1)
        
        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)
        
        ' Copies the entire source ArrayList to the target Array starting
        ' at index 6.
        mySourceList.CopyTo(myTargetArray, 6)
        
        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)
        
        ' Copies the entire source ArrayList to the target Array starting
        ' at index 0.
        mySourceList.CopyTo(myTargetArray)
        
        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)
    End Sub    
    
    Public Shared Sub PrintValues(myArr() As String, mySeparator As Char)
        Dim i As Integer
        For i = 0 To myArr.Length - 1
            Console.Write("{0}{1}", mySeparator, myArr(i))
        Next i
        Console.WriteLine()
    End Sub
    
End Class


' This code produces the following output.
' 
' The target Array contains the following (before and after copying):
'  The quick brown fox jumps over the lazy dog      
'  The quick brown fox jumps over the napping dog      
'  The quick brown fox jumps over three napping cats in the barn   
'  three napping cats in the barn three napping cats in the barn

Комментарии

Указанный массив должен иметь совместимый тип.The specified array must be of a compatible type.

Этот метод использует Array.Copy для копирования элементов.This method uses Array.Copy to copy the elements.

Элементы копируются в Array в том же порядке, в котором перечислитель проходит по ArrayList.The elements are copied to the Array in the same order in which the enumerator iterates through the ArrayList.

Этот метод является операцией O(n), где nCount.This method is an O(n) operation, where n is Count.

CopyTo(Array, Int32)

Копирует целый массив ArrayList в совместимый одномерный массив Array, начиная с заданного индекса целевого массива.Copies the entire ArrayList to a compatible one-dimensional Array, starting at the specified index of the target array.

public:
 virtual void CopyTo(Array ^ array, int arrayIndex);
public virtual void CopyTo (Array array, int arrayIndex);
abstract member CopyTo : Array * int -> unit
override this.CopyTo : Array * int -> unit

Параметры

array
Array

Одномерный массив Array, в который копируются элементы из интерфейса ArrayList.The one-dimensional Array that is the destination of the elements copied from ArrayList. Массив Array должен иметь индексацию, начинающуюся с нуля.The Array must have zero-based indexing.

arrayIndex
Int32

Отсчитываемый от нуля индекс в массиве array, указывающий начало копирования.The zero-based index in array at which copying begins.

Реализации

Исключения

arraynull.array is null.

Значение параметра arrayIndex меньше нуля.arrayIndex is less than zero.

Массив array является многомерным.array is multidimensional.

-или--or- Число элементов в исходной коллекции ArrayList больше доступного места от положения, заданного значением параметра arrayIndex, до конца массива назначения array.The number of elements in the source ArrayList is greater than the available space from arrayIndex to the end of the destination array.

Тип исходного массива ArrayList не может быть автоматически приведен к типу массива назначения array.The type of the source ArrayList cannot be cast automatically to the type of the destination array.

Примеры

В следующем примере кода показано, как скопировать ArrayList в одномерный System.Array.The following code example shows how to copy an ArrayList into a one-dimensional System.Array.

using namespace System;
using namespace System::Collections;
void PrintValues( array<String^>^myArr, char mySeparator );
int main()
{
   
   // Creates and initializes the source ArrayList.
   ArrayList^ mySourceList = gcnew ArrayList;
   mySourceList->Add( "three" );
   mySourceList->Add( "napping" );
   mySourceList->Add( "cats" );
   mySourceList->Add( "in" );
   mySourceList->Add( "the" );
   mySourceList->Add( "barn" );
   
   // Creates and initializes the one-dimensional target Array.
   array<String^>^myTargetArray = gcnew array<String^>(15);
   myTargetArray[ 0 ] = "The";
   myTargetArray[ 1 ] = "quick";
   myTargetArray[ 2 ] = "brown";
   myTargetArray[ 3 ] = "fox";
   myTargetArray[ 4 ] = "jumps";
   myTargetArray[ 5 ] = "over";
   myTargetArray[ 6 ] = "the";
   myTargetArray[ 7 ] = "lazy";
   myTargetArray[ 8 ] = "dog";
   
   // Displays the values of the target Array.
   Console::WriteLine( "The target Array contains the following (before and after copying):" );
   PrintValues( myTargetArray, ' ' );
   
   // Copies the second element from the source ArrayList to the target Array, starting at index 7.
   mySourceList->CopyTo( 1, myTargetArray, 7, 1 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target Array, starting at index 6.
   mySourceList->CopyTo( myTargetArray, 6 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target Array, starting at index 0.
   mySourceList->CopyTo( myTargetArray );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
}

void PrintValues( array<String^>^myArr, char mySeparator )
{
   for ( int i = 0; i < myArr->Length; i++ )
      Console::Write( "{0}{1}", mySeparator, myArr[ i ] );
   Console::WriteLine();
}

/* 
 This code produces the following output.
 
 The target Array contains the following (before and after copying):
  The quick brown fox jumps over the lazy dog
  The quick brown fox jumps over the napping dog
  The quick brown fox jumps over three napping cats in the barn
  three napping cats in the barn three napping cats in the barn

 */
using System;
using System.Collections;
public class SamplesArrayList  {

   public static void Main()  {

      // Creates and initializes the source ArrayList.
      ArrayList mySourceList = new ArrayList();
      mySourceList.Add( "three" );
      mySourceList.Add( "napping" );
      mySourceList.Add( "cats" );
      mySourceList.Add( "in" );
      mySourceList.Add( "the" );
      mySourceList.Add( "barn" );

      // Creates and initializes the one-dimensional target Array.
      String[] myTargetArray = new String[15];
      myTargetArray[0] = "The";
      myTargetArray[1] = "quick";
      myTargetArray[2] = "brown";
      myTargetArray[3] = "fox";
      myTargetArray[4] = "jumps";
      myTargetArray[5] = "over";
      myTargetArray[6] = "the";
      myTargetArray[7] = "lazy";
      myTargetArray[8] = "dog";

      // Displays the values of the target Array.
      Console.WriteLine( "The target Array contains the following (before and after copying):" );
      PrintValues( myTargetArray, ' ' );

      // Copies the second element from the source ArrayList to the target Array, starting at index 7.
      mySourceList.CopyTo( 1, myTargetArray, 7, 1 );

      // Displays the values of the target Array.
      PrintValues( myTargetArray, ' ' );

      // Copies the entire source ArrayList to the target Array, starting at index 6.
      mySourceList.CopyTo( myTargetArray, 6 );

      // Displays the values of the target Array.
      PrintValues( myTargetArray, ' ' );

      // Copies the entire source ArrayList to the target Array, starting at index 0.
      mySourceList.CopyTo( myTargetArray );

      // Displays the values of the target Array.
      PrintValues( myTargetArray, ' ' );

   }

   public static void PrintValues( String[] myArr, char mySeparator )  {
      for ( int i = 0; i < myArr.Length; i++ )
         Console.Write( "{0}{1}", mySeparator, myArr[i] );
      Console.WriteLine();
   }

}


/* 
This code produces the following output.

The target Array contains the following (before and after copying):
 The quick brown fox jumps over the lazy dog
 The quick brown fox jumps over the napping dog
 The quick brown fox jumps over three napping cats in the barn
 three napping cats in the barn three napping cats in the barn

*/ 
Imports System.Collections

Public Class SamplesArrayList

    Public Shared Sub Main()

        ' Creates and initializes the source ArrayList.
        Dim mySourceList As New ArrayList()
        mySourceList.Add("three")
        mySourceList.Add("napping")
        mySourceList.Add("cats")
        mySourceList.Add("in")
        mySourceList.Add("the")
        mySourceList.Add("barn")

        ' Creates and initializes the one-dimensional target Array.
        Dim myTargetArray(14) As String
        myTargetArray(0) = "The"
        myTargetArray(1) = "quick"
        myTargetArray(2) = "brown"
        myTargetArray(3) = "fox"
        myTargetArray(4) = "jumps"
        myTargetArray(5) = "over"
        myTargetArray(6) = "the"
        myTargetArray(7) = "lazy"
        myTargetArray(8) = "dog"

        ' Displays the values of the target Array.
        Console.WriteLine("The target Array contains the following (before and after copying):")
        PrintValues(myTargetArray, " "c)

        ' Copies the second element from the source ArrayList to the target Array, starting at index 7.
        mySourceList.CopyTo(1, myTargetArray, 7, 1)

        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)

        ' Copies the entire source ArrayList to the target Array, starting at index 6.
        mySourceList.CopyTo(myTargetArray, 6)

        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)

        ' Copies the entire source ArrayList to the target Array, starting at index 0.
        mySourceList.CopyTo(myTargetArray)

        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)

    End Sub

    Public Shared Sub PrintValues(myArr() As String, mySeparator As Char)
        Dim i As Integer
        For i = 0 To myArr.Length - 1
            Console.Write("{0}{1}", mySeparator, myArr(i))
        Next i
        Console.WriteLine()
    End Sub

End Class


' This code produces the following output.
' 
' The target Array contains the following (before and after copying):
'  The quick brown fox jumps over the lazy dog
'  The quick brown fox jumps over the napping dog
'  The quick brown fox jumps over three napping cats in the barn
'  three napping cats in the barn three napping cats in the barn

Комментарии

Указанный массив должен иметь совместимый тип.The specified array must be of a compatible type.

Этот метод использует Array.Copy для копирования элементов.This method uses Array.Copy to copy the elements.

Элементы копируются в Array в том же порядке, в котором перечислитель проходит по ArrayList.The elements are copied to the Array in the same order in which the enumerator iterates through the ArrayList.

Этот метод является операцией O(n), где nCount.This method is an O(n) operation, where n is Count.

CopyTo(Int32, Array, Int32, Int32)

Копирует диапазон элементов из списка ArrayList в совместимый одномерный массив Array, начиная с указанного индекса целевого массива.Copies a range of elements from the ArrayList to a compatible one-dimensional Array, starting at the specified index of the target array.

public:
 virtual void CopyTo(int index, Array ^ array, int arrayIndex, int count);
public virtual void CopyTo (int index, Array array, int arrayIndex, int count);
abstract member CopyTo : int * Array * int * int -> unit
override this.CopyTo : int * Array * int * int -> unit

Параметры

index
Int32

Отсчитываемый от нуля индекс исходного списка ArrayList, с которого начинается копирование.The zero-based index in the source ArrayList at which copying begins.

array
Array

Одномерный массив Array , в который копируются элементы из интерфейса ArrayList.The one-dimensional Array that is the destination of the elements copied from ArrayList. Массив Array должен иметь индексацию, начинающуюся с нуля.The Array must have zero-based indexing.

arrayIndex
Int32

Отсчитываемый от нуля индекс в массиве array, указывающий начало копирования.The zero-based index in array at which copying begins.

count
Int32

Число элементов для копирования.The number of elements to copy.

Исключения

Свойство array имеет значение null.array is null.

Значение параметра index меньше нуля.index is less than zero.

-или--or- Значение параметра arrayIndex меньше нуля.arrayIndex is less than zero.

-или--or- Значение параметра count меньше нуля.count is less than zero.

Массив array является многомерным.array is multidimensional.

- или --or- Значение параметра index больше или равно значению Count исходного списка ArrayList.index is equal to or greater than the Count of the source ArrayList.

- или --or- Число элементов от index до конца исходного списка ArrayList больше доступного места от положения, заданного значением параметра arrayIndex, до конца массива назначения array.The number of elements from index to the end of the source ArrayList is greater than the available space from arrayIndex to the end of the destination array.

Тип исходного массива ArrayList не может быть автоматически приведен к типу массива назначения array.The type of the source ArrayList cannot be cast automatically to the type of the destination array.

Примеры

В следующем примере кода показано, как скопировать ArrayList в одномерный System.Array.The following code example shows how to copy an ArrayList into a one-dimensional System.Array.

using namespace System;
using namespace System::Collections;
void PrintValues( array<String^>^myArr, char mySeparator );
int main()
{
   
   // Creates and initializes the source ArrayList.
   ArrayList^ mySourceList = gcnew ArrayList;
   mySourceList->Add( "three" );
   mySourceList->Add( "napping" );
   mySourceList->Add( "cats" );
   mySourceList->Add( "in" );
   mySourceList->Add( "the" );
   mySourceList->Add( "barn" );
   
   // Creates and initializes the one-dimensional target Array.
   array<String^>^myTargetArray = gcnew array<String^>(15);
   myTargetArray[ 0 ] = "The";
   myTargetArray[ 1 ] = "quick";
   myTargetArray[ 2 ] = "brown";
   myTargetArray[ 3 ] = "fox";
   myTargetArray[ 4 ] = "jumps";
   myTargetArray[ 5 ] = "over";
   myTargetArray[ 6 ] = "the";
   myTargetArray[ 7 ] = "lazy";
   myTargetArray[ 8 ] = "dog";
   
   // Displays the values of the target Array.
   Console::WriteLine( "The target Array contains the following (before and after copying):" );
   PrintValues( myTargetArray, ' ' );
   
   // Copies the second element from the source ArrayList to the target Array, starting at index 7.
   mySourceList->CopyTo( 1, myTargetArray, 7, 1 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target Array, starting at index 6.
   mySourceList->CopyTo( myTargetArray, 6 );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
   
   // Copies the entire source ArrayList to the target Array, starting at index 0.
   mySourceList->CopyTo( myTargetArray );
   
   // Displays the values of the target Array.
   PrintValues( myTargetArray, ' ' );
}

void PrintValues( array<String^>^myArr, char mySeparator )
{
   for ( int i = 0; i < myArr->Length; i++ )
      Console::Write( "{0}{1}", mySeparator, myArr[ i ] );
   Console::WriteLine();
}

/* 
 This code produces the following output.
 
 The target Array contains the following (before and after copying):
  The quick brown fox jumps over the lazy dog
  The quick brown fox jumps over the napping dog
  The quick brown fox jumps over three napping cats in the barn
  three napping cats in the barn three napping cats in the barn

 */
using System;
using System.Collections;
public class SamplesArrayList  {

   public static void Main()  {

      // Creates and initializes the source ArrayList.
      ArrayList mySourceList = new ArrayList();
      mySourceList.Add( "three" );
      mySourceList.Add( "napping" );
      mySourceList.Add( "cats" );
      mySourceList.Add( "in" );
      mySourceList.Add( "the" );
      mySourceList.Add( "barn" );

      // Creates and initializes the one-dimensional target Array.
      String[] myTargetArray = new String[15];
      myTargetArray[0] = "The";
      myTargetArray[1] = "quick";
      myTargetArray[2] = "brown";
      myTargetArray[3] = "fox";
      myTargetArray[4] = "jumps";
      myTargetArray[5] = "over";
      myTargetArray[6] = "the";
      myTargetArray[7] = "lazy";
      myTargetArray[8] = "dog";

      // Displays the values of the target Array.
      Console.WriteLine( "The target Array contains the following (before and after copying):" );
      PrintValues( myTargetArray, ' ' );

      // Copies the second element from the source ArrayList to the target Array, starting at index 7.
      mySourceList.CopyTo( 1, myTargetArray, 7, 1 );

      // Displays the values of the target Array.
      PrintValues( myTargetArray, ' ' );

      // Copies the entire source ArrayList to the target Array, starting at index 6.
      mySourceList.CopyTo( myTargetArray, 6 );

      // Displays the values of the target Array.
      PrintValues( myTargetArray, ' ' );

      // Copies the entire source ArrayList to the target Array, starting at index 0.
      mySourceList.CopyTo( myTargetArray );

      // Displays the values of the target Array.
      PrintValues( myTargetArray, ' ' );

   }

   public static void PrintValues( String[] myArr, char mySeparator )  {
      for ( int i = 0; i < myArr.Length; i++ )
         Console.Write( "{0}{1}", mySeparator, myArr[i] );
      Console.WriteLine();
   }

}


/* 
This code produces the following output.

The target Array contains the following (before and after copying):
 The quick brown fox jumps over the lazy dog
 The quick brown fox jumps over the napping dog
 The quick brown fox jumps over three napping cats in the barn
 three napping cats in the barn three napping cats in the barn

*/ 
Imports System.Collections

Public Class SamplesArrayList

    Public Shared Sub Main()

        ' Creates and initializes the source ArrayList.
        Dim mySourceList As New ArrayList()
        mySourceList.Add("three")
        mySourceList.Add("napping")
        mySourceList.Add("cats")
        mySourceList.Add("in")
        mySourceList.Add("the")
        mySourceList.Add("barn")

        ' Creates and initializes the one-dimensional target Array.
        Dim myTargetArray(14) As String
        myTargetArray(0) = "The"
        myTargetArray(1) = "quick"
        myTargetArray(2) = "brown"
        myTargetArray(3) = "fox"
        myTargetArray(4) = "jumps"
        myTargetArray(5) = "over"
        myTargetArray(6) = "the"
        myTargetArray(7) = "lazy"
        myTargetArray(8) = "dog"

        ' Displays the values of the target Array.
        Console.WriteLine("The target Array contains the following (before and after copying):")
        PrintValues(myTargetArray, " "c)

        ' Copies the second element from the source ArrayList to the target Array, starting at index 7.
        mySourceList.CopyTo(1, myTargetArray, 7, 1)

        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)

        ' Copies the entire source ArrayList to the target Array, starting at index 6.
        mySourceList.CopyTo(myTargetArray, 6)

        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)

        ' Copies the entire source ArrayList to the target Array, starting at index 0.
        mySourceList.CopyTo(myTargetArray)

        ' Displays the values of the target Array.
        PrintValues(myTargetArray, " "c)

    End Sub

    Public Shared Sub PrintValues(myArr() As String, mySeparator As Char)
        Dim i As Integer
        For i = 0 To myArr.Length - 1
            Console.Write("{0}{1}", mySeparator, myArr(i))
        Next i
        Console.WriteLine()
    End Sub

End Class


' This code produces the following output.
' 
' The target Array contains the following (before and after copying):
'  The quick brown fox jumps over the lazy dog
'  The quick brown fox jumps over the napping dog
'  The quick brown fox jumps over three napping cats in the barn
'  three napping cats in the barn three napping cats in the barn

Комментарии

Указанный массив должен иметь совместимый тип.The specified array must be of a compatible type.

Этот метод использует Array.Copy для копирования элементов.This method uses Array.Copy to copy the elements.

Элементы копируются в Array в том же порядке, в котором перечислитель проходит по ArrayList.The elements are copied to the Array in the same order in which the enumerator iterates through the ArrayList.

Этот метод является операцией O(n), где ncount.This method is an O(n) operation, where n is count.

Применяется к