Array.GetValue 方法

定义

获取当前 Array 中指定元素的值。Gets the value of the specified element in the current Array.

重载

GetValue(Int64, Int64, Int64)

获取三维 Array 中指定位置的值。Gets the value at the specified position in the three-dimensional Array. 索引指定为 64 位整数。The indexes are specified as 64-bit integers.

GetValue(Int32, Int32, Int32)

获取三维 Array 中指定位置的值。Gets the value at the specified position in the three-dimensional Array. 索引指定为 32 位整数。The indexes are specified as 32-bit integers.

GetValue(Int64, Int64)

获取二维 Array 中指定位置的值。Gets the value at the specified position in the two-dimensional Array. 索引指定为 64 位整数。The indexes are specified as 64-bit integers.

GetValue(Int32, Int32)

获取二维 Array 中指定位置的值。Gets the value at the specified position in the two-dimensional Array. 索引指定为 32 位整数。The indexes are specified as 32-bit integers.

GetValue(Int32)

获取一维 Array 中指定位置的值。Gets the value at the specified position in the one-dimensional Array. 索引指定为 32 位整数。The index is specified as a 32-bit integer.

GetValue(Int64)

获取一维 Array 中指定位置的值。Gets the value at the specified position in the one-dimensional Array. 索引指定为 64 位整数。The index is specified as a 64-bit integer.

GetValue(Int32[])

获取多维 Array 中指定位置的值。Gets the value at the specified position in the multidimensional Array. 索引指定为一个 32 位整数数组。The indexes are specified as an array of 32-bit integers.

GetValue(Int64[])

获取多维 Array 中指定位置的值。Gets the value at the specified position in the multidimensional Array. 索引指定为一个 64 位整数数组。The indexes are specified as an array of 64-bit integers.

示例

下面的代码示例演示如何在一维或多维数组中设置和获取特定值。The following code example demonstrates how to set and get a specific value in a one-dimensional or multidimensional array.

using namespace System;
int main()
{
   
   // Creates and initializes a one-dimensional array.
   array<String^>^myArr1 = gcnew array<String^>(5);
   
   // Sets the element at index 3.
   myArr1->SetValue( "three", 3 );
   Console::WriteLine( "[3]:   {0}", myArr1->GetValue( 3 ) );
   
   // Creates and initializes a two-dimensional array.
   array<String^, 2>^myArr2 = gcnew array<String^,2>(5,5);
   
   // Sets the element at index 1,3.
   myArr2->SetValue( "one-three", 1, 3 );
   Console::WriteLine( "[1,3]:   {0}", myArr2->GetValue( 1, 3 ) );
   
   // Creates and initializes a three-dimensional array.
   array<String^, 3>^myArr3 = gcnew array<String^,3>(5,5,5);
   
   // Sets the element at index 1,2,3.
   myArr3->SetValue( "one-two-three", 1, 2, 3 );
   Console::WriteLine( "[1,2,3]:   {0}", myArr3->GetValue( 1, 2, 3 ) );
   
   // Creates and initializes a seven-dimensional array.
   array<String^, 7>^myArr7 = gcnew array<String^,7>(5,5,5,5,5,5,5);
   
   // Sets the element at index 1,2,3,0,1,2,3.
   array<Int32>^myIndices = {1,2,3,0,1,2,3};
   myArr7->SetValue( "one-two-three-zero-one-two-three", myIndices );
   Console::WriteLine( "[1,2,3,0,1,2,3]:   {0}", myArr7->GetValue( myIndices ) );
}

/* 
This code produces the following output.

[3]:   three
[1,3]:   one-three
[1,2,3]:   one-two-three
[1,2,3,0,1,2,3]:   one-two-three-zero-one-two-three

*/
using System;

public class SamplesArray  {

   public static void Main()  {

      // Creates and initializes a one-dimensional array.
      String[] myArr1 = new String[5];

      // Sets the element at index 3.
      myArr1.SetValue( "three", 3 );
      Console.WriteLine( "[3]:   {0}", myArr1.GetValue( 3 ) );

      // Creates and initializes a two-dimensional array.
      String[,] myArr2 = new String[5,5];

      // Sets the element at index 1,3.
      myArr2.SetValue( "one-three", 1, 3 );
      Console.WriteLine( "[1,3]:   {0}", myArr2.GetValue( 1, 3 ) );

      // Creates and initializes a three-dimensional array.
      String[,,] myArr3 = new String[5,5,5];

      // Sets the element at index 1,2,3.
      myArr3.SetValue( "one-two-three", 1, 2, 3 );
      Console.WriteLine( "[1,2,3]:   {0}", myArr3.GetValue( 1, 2, 3 ) );

      // Creates and initializes a seven-dimensional array.
      String[,,,,,,] myArr7 = new String[5,5,5,5,5,5,5];

      // Sets the element at index 1,2,3,0,1,2,3.
      int[] myIndices = new int[7] { 1, 2, 3, 0, 1, 2, 3 };
      myArr7.SetValue( "one-two-three-zero-one-two-three", myIndices );
      Console.WriteLine( "[1,2,3,0,1,2,3]:   {0}", myArr7.GetValue( myIndices ) );
   }
}


/*
This code produces the following output.

[3]:   three
[1,3]:   one-three
[1,2,3]:   one-two-three
[1,2,3,0,1,2,3]:   one-two-three-zero-one-two-three

*/
Public Class SamplesArray

   Public Shared Sub Main()

      ' Creates and initializes a one-dimensional array.
      Dim myArr1(4) As [String]

      ' Sets the element at index 3.
      myArr1.SetValue("three", 3)
      Console.WriteLine("[3]:   {0}", myArr1.GetValue(3))


      ' Creates and initializes a two-dimensional array.
      Dim myArr2(5, 5) As [String]

      ' Sets the element at index 1,3.
      myArr2.SetValue("one-three", 1, 3)
      Console.WriteLine("[1,3]:   {0}", myArr2.GetValue(1, 3))


      ' Creates and initializes a three-dimensional array.
      Dim myArr3(5, 5, 5) As [String]

      ' Sets the element at index 1,2,3.
      myArr3.SetValue("one-two-three", 1, 2, 3)
      Console.WriteLine("[1,2,3]:   {0}", myArr3.GetValue(1, 2, 3))


      ' Creates and initializes a seven-dimensional array.
      Dim myArr7(5, 5, 5, 5, 5, 5, 5) As [String]

      ' Sets the element at index 1,2,3,0,1,2,3.
      Dim myIndices() As Integer = {1, 2, 3, 0, 1, 2, 3}
      myArr7.SetValue("one-two-three-zero-one-two-three", myIndices)
      Console.WriteLine("[1,2,3,0,1,2,3]:   {0}", myArr7.GetValue(myIndices))

   End Sub

End Class


'This code produces the following output.
'
'[3]:   three
'[1,3]:   one-three
'[1,2,3]:   one-two-three
'[1,2,3,0,1,2,3]:   one-two-three-zero-one-two-three

GetValue(Int64, Int64, Int64)

获取三维 Array 中指定位置的值。Gets the value at the specified position in the three-dimensional Array. 索引指定为 64 位整数。The indexes are specified as 64-bit integers.

public:
 System::Object ^ GetValue(long index1, long index2, long index3);
public object? GetValue (long index1, long index2, long index3);
public object GetValue (long index1, long index2, long index3);
[System.Runtime.InteropServices.ComVisible(false)]
public object GetValue (long index1, long index2, long index3);
member this.GetValue : int64 * int64 * int64 -> obj
[<System.Runtime.InteropServices.ComVisible(false)>]
member this.GetValue : int64 * int64 * int64 -> obj
Public Function GetValue (index1 As Long, index2 As Long, index3 As Long) As Object

参数

index1
Int64

一个 64 位整数,它表示要获取的 Array 元素的第一维索引。A 64-bit integer that represents the first-dimension index of the Array element to get.

index2
Int64

一个 64 位整数,它表示要获取的 Array 元素的第二维索引。A 64-bit integer that represents the second-dimension index of the Array element to get.

index3
Int64

一个 64 位整数,它表示要获取的 Array 元素的第三维索引。A 64-bit integer that represents the third-dimension index of the Array element to get.

返回

Object

三维 Array 中指定位置的值。The value at the specified position in the three-dimensional Array.

属性

例外

当前 Array 不是正好具有三个维度。The current Array does not have exactly three dimensions.

index1index2index3 超出了当前 Array 的相应维度的有效索引范围。index1 or index2 or index3 is outside the range of valid indexes for the corresponding dimension of the current Array.

注解

GetLowerBoundGetUpperBound 方法可以确定任何索引是否超出界限。The GetLowerBound and GetUpperBound methods can determine whether any of the indexes is out of bounds.

此方法是 O (1) 操作。This method is an O(1) operation.

另请参阅

适用于

GetValue(Int32, Int32, Int32)

获取三维 Array 中指定位置的值。Gets the value at the specified position in the three-dimensional Array. 索引指定为 32 位整数。The indexes are specified as 32-bit integers.

public:
 System::Object ^ GetValue(int index1, int index2, int index3);
public object? GetValue (int index1, int index2, int index3);
public object GetValue (int index1, int index2, int index3);
member this.GetValue : int * int * int -> obj
Public Function GetValue (index1 As Integer, index2 As Integer, index3 As Integer) As Object

参数

index1
Int32

一个 32 位整数,它表示要获取的 Array 元素的第一维索引。A 32-bit integer that represents the first-dimension index of the Array element to get.

index2
Int32

一个 32 位整数,它表示要获取的 Array 元素的第二维索引。A 32-bit integer that represents the second-dimension index of the Array element to get.

index3
Int32

一个 32 位整数,它表示要获取的 Array 元素的第三维索引。A 32-bit integer that represents the third-dimension index of the Array element to get.

返回

Object

三维 Array 中指定位置的值。The value at the specified position in the three-dimensional Array.

例外

当前 Array 不是正好具有三个维度。The current Array does not have exactly three dimensions.

index1index2index3 超出了当前 Array 的相应维度的有效索引范围。index1 or index2 or index3 is outside the range of valid indexes for the corresponding dimension of the current Array.

注解

GetLowerBoundGetUpperBound 方法可以确定任何索引是否超出界限。The GetLowerBound and GetUpperBound methods can determine whether any of the indexes is out of bounds.

此方法是 O (1) 操作。This method is an O(1) operation.

另请参阅

适用于

GetValue(Int64, Int64)

获取二维 Array 中指定位置的值。Gets the value at the specified position in the two-dimensional Array. 索引指定为 64 位整数。The indexes are specified as 64-bit integers.

public:
 System::Object ^ GetValue(long index1, long index2);
public object? GetValue (long index1, long index2);
public object GetValue (long index1, long index2);
[System.Runtime.InteropServices.ComVisible(false)]
public object GetValue (long index1, long index2);
member this.GetValue : int64 * int64 -> obj
[<System.Runtime.InteropServices.ComVisible(false)>]
member this.GetValue : int64 * int64 -> obj
Public Function GetValue (index1 As Long, index2 As Long) As Object

参数

index1
Int64

一个 64 位整数,它表示要获取的 Array 元素的第一维索引。A 64-bit integer that represents the first-dimension index of the Array element to get.

index2
Int64

一个 64 位整数,它表示要获取的 Array 元素的第二维索引。A 64-bit integer that represents the second-dimension index of the Array element to get.

返回

Object

二维 Array 中指定位置的值。The value at the specified position in the two-dimensional Array.

属性

例外

当前 Array 不是正好具有两个维度。The current Array does not have exactly two dimensions.

index1index2 超出了当前 Array 的相应维度的有效索引范围。Either index1 or index2 is outside the range of valid indexes for the corresponding dimension of the current Array.

注解

GetLowerBoundGetUpperBound 方法可以确定任何索引是否超出界限。The GetLowerBound and GetUpperBound methods can determine whether any of the indexes is out of bounds.

此方法是 O (1) 操作。This method is an O(1) operation.

另请参阅

适用于

GetValue(Int32, Int32)

获取二维 Array 中指定位置的值。Gets the value at the specified position in the two-dimensional Array. 索引指定为 32 位整数。The indexes are specified as 32-bit integers.

public:
 System::Object ^ GetValue(int index1, int index2);
public object? GetValue (int index1, int index2);
public object GetValue (int index1, int index2);
member this.GetValue : int * int -> obj
Public Function GetValue (index1 As Integer, index2 As Integer) As Object

参数

index1
Int32

一个 32 位整数,它表示要获取的 Array 元素的第一维索引。A 32-bit integer that represents the first-dimension index of the Array element to get.

index2
Int32

一个 32 位整数,它表示要获取的 Array 元素的第二维索引。A 32-bit integer that represents the second-dimension index of the Array element to get.

返回

Object

二维 Array 中指定位置的值。The value at the specified position in the two-dimensional Array.

例外

当前 Array 不是正好具有两个维度。The current Array does not have exactly two dimensions.

index1index2 超出了当前 Array 的相应维度的有效索引范围。Either index1 or index2 is outside the range of valid indexes for the corresponding dimension of the current Array.

注解

GetLowerBoundGetUpperBound 方法可以确定任何索引是否超出界限。The GetLowerBound and GetUpperBound methods can determine whether any of the indexes is out of bounds.

此方法是 O (1) 操作。This method is an O(1) operation.

另请参阅

适用于

GetValue(Int32)

获取一维 Array 中指定位置的值。Gets the value at the specified position in the one-dimensional Array. 索引指定为 32 位整数。The index is specified as a 32-bit integer.

public:
 System::Object ^ GetValue(int index);
public object GetValue (int index);
public object? GetValue (int index);
member this.GetValue : int -> obj
Public Function GetValue (index As Integer) As Object

参数

index
Int32

一个 32 位整数,它表示要获取的 Array 元素的位置。A 32-bit integer that represents the position of the Array element to get.

返回

Object

一维 Array 中指定位置的值。The value at the specified position in the one-dimensional Array.

例外

当前 Array 不是正好具有一个维度。The current Array does not have exactly one dimension.

index 超出了当前 Array 的有效索引的范围。index is outside the range of valid indexes for the current Array.

注解

GetLowerBoundGetUpperBound 方法可以确定的值是否 index 超出界限。The GetLowerBound and GetUpperBound methods can determine whether the value of index is out of bounds.

此方法是 O (1) 操作。This method is an O(1) operation.

另请参阅

适用于

GetValue(Int64)

获取一维 Array 中指定位置的值。Gets the value at the specified position in the one-dimensional Array. 索引指定为 64 位整数。The index is specified as a 64-bit integer.

public:
 System::Object ^ GetValue(long index);
public object? GetValue (long index);
public object GetValue (long index);
[System.Runtime.InteropServices.ComVisible(false)]
public object GetValue (long index);
member this.GetValue : int64 -> obj
[<System.Runtime.InteropServices.ComVisible(false)>]
member this.GetValue : int64 -> obj
Public Function GetValue (index As Long) As Object

参数

index
Int64

一个 64 位整数,它表示要获取的 Array 元素的位置。A 64-bit integer that represents the position of the Array element to get.

返回

Object

一维 Array 中指定位置的值。The value at the specified position in the one-dimensional Array.

属性

例外

当前 Array 不是正好具有一个维度。The current Array does not have exactly one dimension.

index 超出了当前 Array 的有效索引的范围。index is outside the range of valid indexes for the current Array.

注解

GetLowerBoundGetUpperBound 方法可以确定的值是否 index 超出界限。The GetLowerBound and GetUpperBound methods can determine whether the value of index is out of bounds.

此方法是 O (1) 操作。This method is an O(1) operation.

另请参阅

适用于

GetValue(Int32[])

获取多维 Array 中指定位置的值。Gets the value at the specified position in the multidimensional Array. 索引指定为一个 32 位整数数组。The indexes are specified as an array of 32-bit integers.

public:
 System::Object ^ GetValue(... cli::array <int> ^ indices);
public object GetValue (params int[] indices);
public object? GetValue (params int[] indices);
member this.GetValue : int[] -> obj
Public Function GetValue (ParamArray indices As Integer()) As Object

参数

indices
Int32[]

一个 32 位整数的一维数组,它表示指定要获取的 Array 元素的位置的索引。A one-dimensional array of 32-bit integers that represent the indexes specifying the position of the Array element to get.

返回

Object

多维 Array 中指定位置的值。The value at the specified position in the multidimensional Array.

例外

indicesnullindices is null.

当前 Array 中的维数不等于 indices 中的元素数。The number of dimensions in the current Array is not equal to the number of elements in indices.

indices 中的任何元素都超出了当前 Array 的相应维度的有效索引范围。Any element in indices is outside the range of valid indexes for the corresponding dimension of the current Array.

注解

中的元素数 indices 必须等于中的维数 ArrayThe number of elements in indices must equal the number of dimensions in the Array. 数组中的所有元素都 indices 必须共同指定所需元素在多维中的位置 ArrayAll elements in the indices array must collectively specify the position of the desired element in the multidimensional Array.

GetLowerBoundGetUpperBound 方法可以确定任何索引是否超出界限。The GetLowerBound and GetUpperBound methods can determine whether any of the indexes is out of bounds.

此方法是 O (1) 操作。This method is an O(1) operation.

另请参阅

适用于

GetValue(Int64[])

获取多维 Array 中指定位置的值。Gets the value at the specified position in the multidimensional Array. 索引指定为一个 64 位整数数组。The indexes are specified as an array of 64-bit integers.

public:
 System::Object ^ GetValue(... cli::array <long> ^ indices);
public object? GetValue (params long[] indices);
public object GetValue (params long[] indices);
[System.Runtime.InteropServices.ComVisible(false)]
public object GetValue (params long[] indices);
member this.GetValue : int64[] -> obj
[<System.Runtime.InteropServices.ComVisible(false)>]
member this.GetValue : int64[] -> obj
Public Function GetValue (ParamArray indices As Long()) As Object

参数

indices
Int64[]

一个 64 位整数的一维数组,它表示指定要获取的 Array 元素的位置的索引。A one-dimensional array of 64-bit integers that represent the indexes specifying the position of the Array element to get.

返回

Object

多维 Array 中指定位置的值。The value at the specified position in the multidimensional Array.

属性

例外

indicesnullindices is null.

当前 Array 中的维数不等于 indices 中的元素数。The number of dimensions in the current Array is not equal to the number of elements in indices.

indices 中的任何元素都超出了当前 Array 的相应维度的有效索引范围。Any element in indices is outside the range of valid indexes for the corresponding dimension of the current Array.

注解

中的元素数 indices 必须等于中的维数 ArrayThe number of elements in indices must equal the number of dimensions in the Array. 数组中的所有元素都 indices 必须共同指定所需元素在多维中的位置 ArrayAll elements in the indices array must collectively specify the position of the desired element in the multidimensional Array.

GetLowerBoundGetUpperBound 方法可以确定任何索引是否超出界限。The GetLowerBound and GetUpperBound methods can determine whether any of the indexes is out of bounds.

此方法是 O (1) 操作。This method is an O(1) operation.

另请参阅

适用于