C#中的Array.GetValue()方法用于获取当前Array中指定元素的值。此方法的重载列表中共有8个方法,如下所示:
- Array.GetValue(Int32,Int32)
- Array.GetValue(Int64,Int64)
- Array.GetValue(Int32)
- Array.GetValue(Int64)
- Array.GetValue(Int32,Int32,Int32)
- Array.GetValue(Int64,Int64,Int64)
- Array.GetValue(Int32 [])
- Array.GetValue(Int64 [])
在本文中,我们将解释Array.GetValue(Int32,Int32,Int32)和Array.GetValue(Int64,Int64,Int64)方法。
Array.GetValue(Int32,Int32,Int32)方法用于获取三维数组中指定位置的值。索引被指定为32位整数。
句法:
public object GetValue (int index1, int index2, int index3);
这里,
- “ index1”是元素所在的数组的编号。
- “ index2”是元素所在行的索引。
- “ index3”是元素所在列的索引。
返回值:该方法返回指定索引处的元素,该索引由3D数组中传递的参数定义。该值是一个32位整数值。
例外情况:
- ArgumentException:当前的Array不完全具有三个维度。
- IndexOutOfRangeException:如果index1或index2或index3在当前数组的相应维的有效索引范围之外。
Array.GetValue(Int64,Int64,Int64)方法用于获取三维数组中指定位置的值。索引被指定为64位整数。
句法:
public object GetValue (long index1, long index2, long index3);
这里,
- “ index1”是元素所在的数组的编号。
- “ index2”是元素所在行的索引。
- “ index3”是元素所在列的索引。
返回值:该方法返回指定索引处的元素,该索引由3D数组中传递的参数定义。该值是64位整数值。
例外情况:
- ArgumentException:当前的Array不完全具有三个维度。
- IndexOutOfRangeException:如果index1或index2或index2在当前数组的相应维的有效索引范围之外。
范例1:
C#
// C# program to demonstrate
// Array.GetValue(Int32, Int32, Int32)
// and array.GetValue(Int64, Int64, Int64)
// method
using System;
public class GFG {
public static void Main() {
// declare a character
// array of size 2x2x3
// 2 row and 3 column
// numbe of array is 2
char[, , ] arr = new char[2, 2, 3]{
{// array 1
{'A', 'B', 'C'},
{'D', 'E', 'F'}
},
{// array 2
{'G', 'H', 'I'},
{'J', 'K', 'L'}}
};
// using GetValue(Int32, Int32, Int32) and
// GetValue(Int64, Int64, Int64) method
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
for (int k = 0; k < 3; k++) {
Console.WriteLine("element at index [{0}, {1}, {2}] is : {3}", i, j,
k, arr.GetValue(i, j, k));
}
}
}
}
}
C#
// C# program to demonstrate
// Array.GetValue(Int32, Int32, Int32)
// and array.GetValue(Int64, Int64, Int64)
// method
using System;
public class GFG {
public static void Main()
{
// declare a character
// array of size 2x2x3
// 2 row and 3 column
// numbe of array is 2
string[,, ] arr = new string[2, 2, 3];
// use "SetValue()" method to set
// the value at specified index
arr.SetValue("C++", 0, 0, 0);
arr.SetValue("Java", 0, 0, 1);
arr.SetValue("C#", 0, 0, 2);
arr.SetValue("Perl", 0, 1, 0);
arr.SetValue("Python", 0, 1, 1);
arr.SetValue("PHP", 0, 1, 2);
arr.SetValue("GO", 1, 0, 0);
arr.SetValue("Ruby", 1, 0, 1);
arr.SetValue("F#", 1, 0, 2);
arr.SetValue("JavaScript", 1, 1, 0);
arr.SetValue("SQL", 1, 1, 1);
arr.SetValue("kotlin", 1, 1, 2);
// using GetValue(Int32, Int32, Int32) and
// GetValue(Int64, Int64, Int64) method
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
for (int k = 0; k < 3; k++) {
Console.WriteLine("element at index [{0}, {1}, {2}] is : {3}",
i, j, k, arr.GetValue(i, j, k));
}
}
}
}
}
输出
element at index [0, 0, 0] is : A
element at index [0, 0, 1] is : B
element at index [0, 0, 2] is : C
element at index [0, 1, 0] is : D
element at index [0, 1, 1] is : E
element at index [0, 1, 2] is : F
element at index [1, 0, 0] is : G
element at index [1, 0, 1] is : H
element at index [1, 0, 2] is : I
element at index [1, 1, 0] is : J
element at index [1, 1, 1] is : K
element at index [1, 1, 2] is : L
范例2:
C#
// C# program to demonstrate
// Array.GetValue(Int32, Int32, Int32)
// and array.GetValue(Int64, Int64, Int64)
// method
using System;
public class GFG {
public static void Main()
{
// declare a character
// array of size 2x2x3
// 2 row and 3 column
// numbe of array is 2
string[,, ] arr = new string[2, 2, 3];
// use "SetValue()" method to set
// the value at specified index
arr.SetValue("C++", 0, 0, 0);
arr.SetValue("Java", 0, 0, 1);
arr.SetValue("C#", 0, 0, 2);
arr.SetValue("Perl", 0, 1, 0);
arr.SetValue("Python", 0, 1, 1);
arr.SetValue("PHP", 0, 1, 2);
arr.SetValue("GO", 1, 0, 0);
arr.SetValue("Ruby", 1, 0, 1);
arr.SetValue("F#", 1, 0, 2);
arr.SetValue("JavaScript", 1, 1, 0);
arr.SetValue("SQL", 1, 1, 1);
arr.SetValue("kotlin", 1, 1, 2);
// using GetValue(Int32, Int32, Int32) and
// GetValue(Int64, Int64, Int64) method
for (int i = 0; i < 2; i++) {
for (int j = 0; j < 2; j++) {
for (int k = 0; k < 3; k++) {
Console.WriteLine("element at index [{0}, {1}, {2}] is : {3}",
i, j, k, arr.GetValue(i, j, k));
}
}
}
}
}
输出
element at index [0, 0, 0] is : C++
element at index [0, 0, 1] is : Java
element at index [0, 0, 2] is : C#
element at index [0, 1, 0] is : Perl
element at index [0, 1, 1] is : Python
element at index [0, 1, 2] is : PHP
element at index [1, 0, 0] is : GO
element at index [1, 0, 1] is : Ruby
element at index [1, 0, 2] is : F#
element at index [1, 1, 0] is : JavaScript
element at index [1, 1, 1] is : SQL
element at index [1, 1, 2] is : kotlin
注意:对于在线编译器,不能使用32位或64位整数。将脱机编译器用于32或64位整数。