1 次元 Array の範囲内の要素のシーケンスを反転させます。
Overloads Public Shared Sub Reverse( _
ByVal array As Array, _ ByVal index As Integer, _ ByVal length As Integer _)
[C#]
public static void Reverse(Arrayarray,intindex,intlength);
[C++]
public: static void Reverse(Array* array,intindex,intlength);
[JScript]
public static function Reverse(
array : Array,index : int,length : int);
パラメータ
- array
反転させる 1 次元の Array 。 - index
反転させる範囲の先頭位置を示すインデックス。 - length
反転対象の範囲内にある要素の数。
例外
| 例外の種類 | 条件 |
|---|---|
| ArgumentNullException | array が null 参照 (Visual Basic では Nothing) です。 |
| RankException | array が多次元です。 |
| ArgumentOutOfRangeException | index が array の下限より小さい値です。
または length が 0 未満です。 |
| ArgumentException | index および length が array 内の有効な範囲を指定していません。 |
解説
このメソッドが呼び出された後、 myArray[i] (i は配列内の任意のインデックス) の位置にある要素が、 myArray[j] (j は ( myArray.Length + myArray.GetLowerBound(0) ) - ( i - myArray.GetLowerBound(0) ) - 1 に等しい) の位置に移動します。
使用例
Array の範囲内の値の並べ替え順序を反転させる方法を次のコード例に示します。
Imports System
Imports Microsoft.VisualBasic
Public Class SamplesArray
Public Shared Sub Main()
' Creates and initializes a new Array.
Dim myArray As Array = Array.CreateInstance(GetType(String), 9)
myArray.SetValue("The", 0)
myArray.SetValue("QUICK", 1)
myArray.SetValue("BROWN", 2)
myArray.SetValue("FOX", 3)
myArray.SetValue("jumps", 4)
myArray.SetValue("over", 5)
myArray.SetValue("the", 6)
myArray.SetValue("lazy", 7)
myArray.SetValue("dog", 8)
' Displays the values of the Array.
Console.WriteLine("The Array initially contains the " _
+ "following values:")
PrintIndexAndValues(myArray)
' Reverses the sort of the values of the Array.
Array.Reverse(myArray, 1, 3)
' Displays the values of the Array.
Console.WriteLine("After reversing:")
PrintIndexAndValues(myArray)
End Sub
Public Shared Sub PrintIndexAndValues(myArray As Array)
Dim i As Integer
For i = myArray.GetLowerBound(0) To myArray.GetUpperBound(0)
Console.WriteLine(ControlChars.Tab + "[{0}]:" + ControlChars.Tab _
+ "{1}", i, myArray.GetValue(i))
Next i
End Sub
End Class
' This code produces the following output.
'
' The Array initially contains the following values:
' [0]: The
' [1]: QUICK
' [2]: BROWN
' [3]: FOX
' [4]: jumps
' [5]: over
' [6]: the
' [7]: lazy
' [8]: dog
' After reversing:
' [0]: The
' [1]: FOX
' [2]: BROWN
' [3]: QUICK
' [4]: jumps
' [5]: over
' [6]: the
' [7]: lazy
' [8]: dog
[C#]
using System;
public class SamplesArray {
public static void Main() {
// Creates and initializes a new Array.
Array myArray=Array.CreateInstance( typeof(String), 9 );
myArray.SetValue( "The", 0 );
myArray.SetValue( "QUICK", 1 );
myArray.SetValue( "BROWN", 2 );
myArray.SetValue( "FOX", 3 );
myArray.SetValue( "jumps", 4 );
myArray.SetValue( "over", 5 );
myArray.SetValue( "the", 6 );
myArray.SetValue( "lazy", 7 );
myArray.SetValue( "dog", 8 );
// Displays the values of the Array.
Console.WriteLine( "The Array initially contains the following values:" );
PrintIndexAndValues( myArray );
// Reverses the sort of the values of the Array.
Array.Reverse( myArray, 1, 3 );
// Displays the values of the Array.
Console.WriteLine( "After reversing:" );
PrintIndexAndValues( myArray );
}
public static void PrintIndexAndValues( Array myArray ) {
for ( int i = myArray.GetLowerBound(0); i <= myArray.GetUpperBound(0); i++ )
Console.WriteLine( "\t[{0}]:\t{1}", i, myArray.GetValue( i ) );
}
}
/*
This code produces the following output.
The Array initially contains the following values:
[0]: The
[1]: QUICK
[2]: BROWN
[3]: FOX
[4]: jumps
[5]: over
[6]: the
[7]: lazy
[8]: dog
After reversing:
[0]: The
[1]: FOX
[2]: BROWN
[3]: QUICK
[4]: jumps
[5]: over
[6]: the
[7]: lazy
[8]: dog
*/
[C++]
#using <mscorlib.dll>
using namespace System;
void PrintIndexAndValues( Array* myArray );
void main() {
// Creates and initializes a new Array instance.
Array* myArray = Array::CreateInstance( __typeof(String), 9 );
myArray->SetValue( S"The", 0 );
myArray->SetValue( S"QUICK", 1 );
myArray->SetValue( S"BROWN", 2 );
myArray->SetValue( S"FOX", 3 );
myArray->SetValue( S"jumped", 4 );
myArray->SetValue( S"over", 5 );
myArray->SetValue( S"the", 6 );
myArray->SetValue( S"lazy", 7 );
myArray->SetValue( S"dog", 8 );
// Displays the values of the Array.
Console::WriteLine( "The Array instance initially contains the following values:" );
PrintIndexAndValues( myArray );
// Reverses the sort of the values of the Array.
Array::Reverse( myArray, 1, 3 );
// Displays the values of the Array.
Console::WriteLine( "After reversing:" );
PrintIndexAndValues( myArray );
}
void PrintIndexAndValues( Array* myArray ) {
for ( int i = myArray->GetLowerBound(0); i <= myArray->GetUpperBound(0); i++ )
Console::WriteLine( "\t[{0}]:\t{1}", __box(i), myArray->GetValue( i ) );
}
/*
This code produces the following output.
The Array instance initially contains the following values:
[0]: The
[1]: QUICK
[2]: BROWN
[3]: FOX
[4]: jumped
[5]: over
[6]: the
[7]: lazy
[8]: dog
After reversing:
[0]: The
[1]: FOX
[2]: BROWN
[3]: QUICK
[4]: jumped
[5]: over
[6]: the
[7]: lazy
[8]: dog
*/
[JScript]
import System;
// Creates and initializes a new Array.
var myArray : System.Array= System.Array.CreateInstance( System.String, 9 );
myArray.SetValue( "The", 0 );
myArray.SetValue( "QUICK", 1 );
myArray.SetValue( "BROWN", 2 );
myArray.SetValue( "FOX", 3 );
myArray.SetValue( "jumped", 4 );
myArray.SetValue( "over", 5 );
myArray.SetValue( "the", 6 );
myArray.SetValue( "lazy", 7 );
myArray.SetValue( "dog", 8 );
// Displays the values of the Array.
Console.WriteLine( "The Array initially contains the following values:" );
PrintIndexAndValues( myArray );
// Reverses the sort of the values of the Array.
System.Array.Reverse( myArray, 1, 3 );
// Displays the values of the Array.
Console.WriteLine( "After reversing:" );
PrintIndexAndValues( myArray );
function PrintIndexAndValues( myArray : System.Array ) {
for ( var i : int = myArray.GetLowerBound(0); i <= myArray.GetUpperBound(0); i++ )
Console.WriteLine( "\t[{0}]:\t{1}", i, myArray.GetValue( i ) );
}
/*
This code produces the following output.
The Array initially contains the following values:
[0]: The
[1]: QUICK
[2]: BROWN
[3]: FOX
[4]: jumped
[5]: over
[6]: the
[7]: lazy
[8]: dog
After reversing:
[0]: The
[1]: FOX
[2]: BROWN
[3]: QUICK
[4]: jumped
[5]: over
[6]: the
[7]: lazy
[8]: dog
*/
必要条件
プラットフォーム: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 ファミリ, .NET Compact Framework - Windows CE .NET, Common Language Infrastructure (CLI) Standard
参照
Array クラス | Array メンバ | System 名前空間 | Array.Reverse オーバーロードの一覧