Array.Rank Property
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Gets the rank (number of dimensions) of the Array. For example, a one-dimensional array returns 1, a two-dimensional array returns 2, and so on.
public:
property int Rank { int get(); };
public int Rank { get; }
member this.Rank : int
Public ReadOnly Property Rank As Integer
The rank (number of dimensions) of the Array.
The following example initializes a one-dimensional array, a two-dimensional array, and a jagged array, and retrieves the Rank property of each.
using System;
public class Example
{
public static void Main()
{
int[] array1 = new int[10];
int[,] array2= new int[10,3];
int[][] array3 = new int[10][];
Console.WriteLine("{0}: {1} dimension(s)",
array1.ToString(), array1.Rank);
Console.WriteLine("{0}: {1} dimension(s)",
array2.ToString(), array2.Rank);
Console.WriteLine("{0}: {1} dimension(s)",
array3.ToString(), array3.Rank);
}
}
// The example displays the following output:
// System.Int32[]: 1 dimension(s)
// System.Int32[,]: 2 dimension(s)
// System.Int32[][]: 1 dimension(s)
let array1 = Array.zeroCreate<int> 10
let array2 = Array2D.zeroCreate<int> 10 3
let array3 = Array.zeroCreate<int[]> 10
printfn $"{array1}: {array1.Rank} dimension(s)"
printfn $"{array2}: {array2.Rank} dimension(s)"
printfn $"{array3}: {array3.Rank} dimension(s)"
// The example displays the following output:
// System.Int32[]: 1 dimension(s)
// System.Int32[,]: 2 dimension(s)
// System.Int32[][]: 1 dimension(s)
Module Example
Public Sub Main()
Dim array1(9) As Integer
Dim array2(9,2) As Integer
Dim array3(9)() As Integer
Console.WriteLine("{0}: {1} dimension(s)",
array1.ToString(), array1.Rank)
Console.WriteLine("{0}: {1} dimension(s)",
array2.ToString(), array2.Rank)
Console.WriteLine("{0}: {1} dimension(s)",
array3.ToString(), array3.Rank)
End Sub
End Module
' The example displays the following output:
' System.Int32[]: 1 dimension(s)
' System.Int32[,]: 2 dimension(s)
' System.Int32[][]: 1 dimension(s)
For example, the following code creates an array of three dimensions with a Rank property whose value is 3.
Dim TDArray(0,0,0) As Integer
int[,,] TDArray = new int[1,1,1];
A jagged array (an array of arrays) is a one-dimensional array; the value of its Rank property is 1.
Retrieving the value of this property is an O(1) operation.
Produit | Versions |
---|---|
.NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1 |
UWP | 10.0 |
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