Go by Example:arrays

This is a creation in Article, where the information may have evolved or changed.

The go language array is a fixed-length sequence, and the array contains the same type of elements.

Package Mainimport "FMT" Func Main () {//    Here we have created an integer (int) array with 5 elements    //elements whose data type and array length are part of the arrays type    //By default, The array elements are all 0 values.    //For integers, a value of 0 is 0    var a [5]int    FMT. Println ("EMP:", a)    //We can use indexed values (index) to set the value of an array element, like so "array[index] = value"//or use an index to get the element value, such as "Array[index]"    a [4] = the    fmt. Println ("Set:", a)    FMT. Println ("Get:", a[4])    //The built-in Len function returns the length of the array    FMT. Println ("Len:", Len (a))    //Use the following methods to define and initialize an array of    b: = [5]int{1, 2, 3, 4, 5}    FMT. Println ("DCL:", b)    ///arrays are one-dimensional, but you can define an array of elements as an array    //To get a multidimensional array structure    var twod [2][3]int for    I: = 0; I < 2; i++ {for        J: = 0; J < 3; J + + {            Twod[i][j] = i + j        }    }    fmt. Println ("2d:", Twod)}

Output

$ Go run arrays.goemp: [0 0 0 0 0]set: [0 0 0 0]get:100len:5DCL: [1 2 3 4 5]2d:  [[0 1 2] [1 2 3]

When you use FMT. println the output array, you will find that the array will be [v1,v2,v3 ...] form is printed.

In the classic go language, you will encounter more slices (slice) than with arrays (array).

To learn more about arrays, see Learning Golang Language (5): Type--array

The next section will explain the slices.

Next example: Go by Example:slices.

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