How to implement array calling in go language

The method of calling an array in Go language: 1. Use the var keyword to declare an array variable, and initialize the array by specifying the type and length of the array; 2. Access the elements of the array through subscripts, The subscripts of the array start counting from 0; 3. Use the len function to get the length of the array; 4. Use a for loop to traverse all elements of the array; 5. Perform initialization and assignment operations while declaring the array, or you can use... to Let the compiler automatically deduce the length of the array; 6. Use multi-dimensional arrays to store multi-dimensional data, etc.

The operating environment of this article: Windows 10 system, Go1.20.4 version, Dell G3 computer.

In Go language, you can call arrays in the following ways:

Declare and initialize arrays:

In Go language, you can Use the var keyword to declare an array variable and initialize the array by specifying its type and length. For example, we can declare an array containing 5 integers:

var arr [5]int

Array assignment and access:

You can access the elements of the array through subscripts. The index starts counting from 0. For example, we can assign and access the elements of an array through subscripts:

arr[0] = 10
fmt.Println(arr[0]) // 输出: 10

The length of the array:

The len function can be used to get the length of the array. For example, we can get the length of the array arr through the len function:

length := len(arr)
fmt.Println(length) // 输出: 5

Loop traversal of the array:

You can use a for loop to traverse all elements of the array. For example, we can use a for loop to traverse all elements of the array arr:

for i := 0; i < len(arr); i++ {
    fmt.Println(arr[i])
}

Initialization and assignment of the array:

Can be initialized and assigned while declaring the array operate. For example, we can declare an array containing 5 integers and initialize it to the specified value:

arr := [5]int{1, 2, 3, 4, 5}

You can also use... to let the compiler automatically deduce the length of the array. For example, we can declare an array of 5 integers and use... to let the compiler automatically deduce the length of the array:

arr := [...]int{1, 2, 3, 4, 5}

Calls for multidimensional arrays:

Multidimensional arrays can be used to store multidimensional data. For example, we can declare a two-dimensional array containing 3 rows and 4 columns, and access the elements in it:

var matrix [3][4]int
matrix[0][0] = 1
fmt.Println(matrix[0][0]) // 输出: 1

The above are several ways to implement array calls in the Go language. In these ways, we can easily declare, initialize, assign and access the elements of the array.

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