ArraySegment<T>.Array 属性
定义
重要
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获取原始数组，其中包含数组段分隔的元素范围。
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()属性值
- T[]
传递到构造函数并且包含由 ArraySegment<T> 分隔的范围的原始数组。
示例
下面的代码示例将传递给 ArraySegment<T> 方法。
using namespace System;
namespace Sample
{
public ref class SampleArray
{
public:
static void Work()
{
// Create and initialize a new string array.
array <String^>^ words = {"The", "quick", "brown",
"fox", "jumps", "over", "the", "lazy", "dog"};
// Display the initial contents of the array.
Console::WriteLine("The first array segment"
" (with all the array's elements) contains:");
PrintIndexAndValues(words);
// Define an array segment that contains the entire array.
ArraySegment<String^> segment(words);
// Display the contents of the ArraySegment.
Console::WriteLine("The first array segment"
" (with all the array's elements) contains:");
PrintIndexAndValues(segment);
// Define an array segment that contains the middle five
// values of the array.
ArraySegment<String^> middle(words, 2, 5);
// Display the contents of the ArraySegment.
Console::WriteLine("The second array segment"
" (with the middle five elements) contains:");
PrintIndexAndValues(middle);
// Modify the fourth element of the first array
// segment
segment.Array[3] = "LION";
// Display the contents of the second array segment
// middle. 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(middle);
Console::ReadLine();
}
static void PrintIndexAndValues(ArraySegment<String^>^ segment)
{
for (int i = segment->Offset;
i < (segment->Offset + segment->Count); i++)
{
Console::WriteLine(" [{0}] : {1}", i,
segment->Array[i]);
}
Console::WriteLine();
}
static void PrintIndexAndValues(array<String^>^ words)
{
for (int i = 0; i < words->Length; i++)
{
Console::WriteLine(" [{0}] : {1}", i,
words[i]);
}
Console::WriteLine();
}
};
}
int main()
{
Sample::SampleArray::Work();
return 0;
}
/*
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
*/
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
注解
该 Array 属性返回原始数组，而不是数组的副本;因此，通过该属性所做的更改直接对原始数组进行更改。