Array.Rank Array.Rank Array.Rank Array.Rank Property

定義

取得 Array 的陣序 (維度數目)。Gets the rank (number of dimensions) of the Array. 例如,一維陣列傳回 1,二維陣列傳回 2,依此類推。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

屬性值

Array 的陣序 (維度數目)。The rank (number of dimensions) of the Array.

範例

下列範例會初始化一維陣列、 一個二維陣列和不規則的陣列,並擷取Rank每個屬性。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
//       System.Int32[,]: 2 dimension
//       System.Int32[][]: 1 dimension
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
'       System.Int32[,]: 2 dimension
'       System.Int32[][]: 1 dimension

備註

例如,Visual Basic 程式碼For example, the Visual Basic code

Dim TDArray(0,0,0) As Integer  

和 C# 程式碼and the C# code

int[,,] TDArray = new int[1,1,1];  

建立具有三個維度的陣列Rank屬性且值為 3。create an array of three dimensions with a Rank property whose value is 3.

不規則的陣列 (陣列的陣列) 是一維陣列;值及其Rank屬性為 1。A jagged array (an array of arrays) is a one-dimensional array; the value of its Rank property is 1.

擷取這個屬性的值是一種 O(1) 運算。Retrieving the value of this property is an O(1) operation.

適用於

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