ArraySegment<T>.Array Eigenschap
Definitie
Belangrijk
Bepaalde informatie heeft betrekking op een voorlopige productversie die aanzienlijk kan worden gewijzigd voordat deze wordt uitgebracht. Microsoft biedt geen enkele expliciete of impliciete garanties met betrekking tot de informatie die hier wordt verstrekt.
Hiermee haalt u de oorspronkelijke matrix op met het bereik van elementen dat door het matrixsegment wordt gescheiden.
public:
property cli::array <T> ^ Array { cli::array <T> ^ get(); };public T[] Array { get; }public T[]? Array { get; }member this.Array : 'T[]Public ReadOnly Property Array As T()Waarde van eigenschap
T[]
De oorspronkelijke matrix die is doorgegeven aan de constructor en dat het bereik bevat dat is gescheiden door de ArraySegment<T>.
Voorbeelden
In het volgende codevoorbeeld wordt een ArraySegment<T> methode doorgegeven.
using System;
public class SamplesArray {
public static void Main() {
// Create and initialize a new string array.
String[] myArr = { "The", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog" };
// Display the initial contents of the array.
Console.WriteLine( "The original array initially contains:" );
PrintIndexAndValues( myArr );
// Define an array segment that contains the entire array.
ArraySegment<string> myArrSegAll = new ArraySegment<string>( myArr );
// Display the contents of the ArraySegment.
Console.WriteLine( "The first array segment (with all the array's elements) contains:" );
PrintIndexAndValues( myArrSegAll );
// Define an array segment that contains the middle five values of the array.
ArraySegment<string> myArrSegMid = new ArraySegment<string>( myArr, 2, 5 );
// Display the contents of the ArraySegment.
Console.WriteLine( "The second array segment (with the middle five elements) contains:" );
PrintIndexAndValues( myArrSegMid );
// Modify the fourth element of the first array segment myArrSegAll.
myArrSegAll.Array[3] = "LION";
// Display the contents of the second array segment myArrSegMid.
// Note that the value of its second element also changed.
Console.WriteLine( "After the first array segment is modified, the second array segment now contains:" );
PrintIndexAndValues( myArrSegMid );
}
public static void PrintIndexAndValues( ArraySegment<string> arrSeg ) {
for ( int i = arrSeg.Offset; i < (arrSeg.Offset + arrSeg.Count); i++ ) {
Console.WriteLine( " [{0}] : {1}", i, arrSeg.Array[i] );
}
Console.WriteLine();
}
public static void PrintIndexAndValues( String[] myArr ) {
for ( int i = 0; i < myArr.Length; i++ ) {
Console.WriteLine( " [{0}] : {1}", i, myArr[i] );
}
Console.WriteLine();
}
}
/*
This code produces the following output.
The original array initially contains:
[0] : The
[1] : quick
[2] : brown
[3] : fox
[4] : jumps
[5] : over
[6] : the
[7] : lazy
[8] : dog
The first array segment (with all the array's elements) contains:
[0] : The
[1] : quick
[2] : brown
[3] : fox
[4] : jumps
[5] : over
[6] : the
[7] : lazy
[8] : dog
The second array segment (with the middle five elements) contains:
[2] : brown
[3] : fox
[4] : jumps
[5] : over
[6] : the
After the first array segment is modified, the second array segment now contains:
[2] : brown
[3] : LION
[4] : jumps
[5] : over
[6] : the
*/
open System
// Print functions.
let printIndexAndValues (myArr: string []) =
for i = 0 to myArr.Length - 1 do
printfn $" [{i}] : {myArr[i]}"
printfn ""
let printIndexAndValuesSeg (arrSeg: ArraySegment<string>) =
for i = arrSeg.Offset to arrSeg.Offset + arrSeg.Count - 1 do
printfn $" [{i}] : {arrSeg.Array[i]}"
printfn ""
// Create and initialize a new string array.
let myArr = [| "The"; "quick"; "brown"; "fox"; "jumps"; "over"; "the"; "lazy"; "dog" |]
// Display the initial contents of the array.
printfn "The original array initially contains:"
printIndexAndValues myArr
// Define an array segment that contains the entire array.
let myArrSegAll = ArraySegment<string>(myArr)
// Display the contents of the ArraySegment.
printfn "The first array segment (with all the array's elements) contains:"
printIndexAndValuesSeg myArrSegAll
// Define an array segment that contains the middle five values of the array.
let myArrSegMid = ArraySegment<string>(myArr, 2, 5)
// Display the contents of the ArraySegment.
printfn "The second array segment (with the middle five elements) contains:"
printIndexAndValuesSeg myArrSegMid
// Modify the fourth element of the first array segment myArrSegAll.
myArrSegAll.Array[3] <- "LION"
// Display the contents of the second array segment myArrSegMid.
// Note that the value of its second element also changed.
printfn "After the first array segment is modified, the second array segment now contains:"
printIndexAndValuesSeg myArrSegMid
(*
This code produces the following output.
The original array initially contains:
[0] : The
[1] : quick
[2] : brown
[3] : fox
[4] : jumps
[5] : over
[6] : the
[7] : lazy
[8] : dog
The first array segment (with all the array's elements) contains:
[0] : The
[1] : quick
[2] : brown
[3] : fox
[4] : jumps
[5] : over
[6] : the
[7] : lazy
[8] : dog
The second array segment (with the middle five elements) contains:
[2] : brown
[3] : fox
[4] : jumps
[5] : over
[6] : the
After the first array segment is modified, the second array segment now contains:
[2] : brown
[3] : LION
[4] : jumps
[5] : over
[6] : the
*)
Public Class SamplesArray
Public Shared Sub Main()
' Create and initialize a new string array.
Dim myArr As String() = {"The", "quick", "brown", "fox", "jumps", "over", "the", "lazy", "dog"}
' Display the initial contents of the array.
Console.WriteLine("The original array initially contains:")
PrintIndexAndValues(myArr)
' Define an array segment that contains the entire array.
Dim myArrSegAll As New ArraySegment(Of String)(myArr)
' Display the contents of the ArraySegment.
Console.WriteLine("The first array segment (with all the array's elements) contains:")
PrintIndexAndValues(myArrSegAll)
' Define an array segment that contains the middle five values of the array.
Dim myArrSegMid As New ArraySegment(Of String)(myArr, 2, 5)
' Display the contents of the ArraySegment.
Console.WriteLine("The second array segment (with the middle five elements) contains:")
PrintIndexAndValues(myArrSegMid)
' Modify the fourth element of the first array segment myArrSegAll.
myArrSegAll.Array(3) = "LION"
' Display the contents of the second array segment myArrSegMid.
' Note that the value of its second element also changed.
Console.WriteLine("After the first array segment is modified, the second array segment now contains:")
PrintIndexAndValues(myArrSegMid)
End Sub
Public Shared Sub PrintIndexAndValues(arrSeg As ArraySegment(Of String))
Dim i As Integer
For i = arrSeg.Offset To (arrSeg.Offset + arrSeg.Count - 1)
Console.WriteLine(" [{0}] : {1}", i, arrSeg.Array(i))
Next i
Console.WriteLine()
End Sub
Public Shared Sub PrintIndexAndValues(myArr as String())
Dim i As Integer
For i = 0 To (myArr.Length - 1)
Console.WriteLine(" [{0}] : {1}", i, myArr(i))
Next i
Console.WriteLine()
End Sub
End Class
'This code produces the following output.
'
'The original array initially contains:
' [0] : The
' [1] : quick
' [2] : brown
' [3] : fox
' [4] : jumps
' [5] : over
' [6] : the
' [7] : lazy
' [8] : dog
'
'The first array segment (with all the array's elements) contains:
' [0] : The
' [1] : quick
' [2] : brown
' [3] : fox
' [4] : jumps
' [5] : over
' [6] : the
' [7] : lazy
' [8] : dog
'
'The second array segment (with the middle five elements) contains:
' [2] : brown
' [3] : fox
' [4] : jumps
' [5] : over
' [6] : the
'
'After the first array segment is modified, the second array segment now contains:
' [2] : brown
' [3] : LION
' [4] : jumps
' [5] : over
' [6] : the
Opmerkingen
De Array eigenschap retourneert de oorspronkelijke matrix, niet een kopie van de matrix. Daarom worden wijzigingen die via de eigenschap zijn aangebracht, rechtstreeks in de oorspronkelijke matrix aangebracht.
