How to define an array using variables?

In VS, you can define an array using variables using the following methods:

1. Declare an array variable using the symbol ([ ]) and then reference the array using the variable name.

int[] numbers; // 声明一个整数数组变量
string[] names; // 声明一个字符串数组变量

1. When initializing an array, you can use variables to specify the length of the array.

int size = 5;
int[] numbers = new int[size]; // 使用变量 size 定义一个具有指定长度的整数数组

string[] names = new string[10]; // 可以直接使用变量来指定数组长度

1. You can use variables to initialize the elements of an array.

int[] numbers = new int[] { 1, 2, 3, 4, 5 }; // 直接指定元素来初始化整数数组

int[] numbers = new int[size] { 1, 2, 3, 4, 5 }; // 使用变量 size 定义一个具有指定长度和元素的整数数组

string[] names = new string[] { "John", "Mary", "Tom" }; // 直接指定元素来初始化字符串数组

string[] names = new string[size] { "John", "Mary", "Tom" }; // 使用变量 size 定义一个具有指定长度和元素的字符串数组

1. You can use looping structure and variables to iterate through the elements in an array.

int[] numbers = new int[] { 1, 2, 3, 4, 5 };

for (int i = 0; i < numbers.Length; i++)
{
    Console.WriteLine(numbers[i]);
}

The above are some common methods of defining arrays using variables in Visual Studio. You can choose the method that suits your specific needs for defining and using arrays.