What data structures does Go language support?

Go language, as a modern programming language, provides rich data structures to help developers manage data more effectively. This article will introduce some common data structures supported by Go language, including arrays, slices, maps, structures and pointers, and provide specific code examples.

1. Array

An array is a fixed-length data structure in which the elements stored must be of the same type. In Go language, you can define an array in the following way:

// 定义一个长度为5的整型数组
var arr [5]int

Assign a value to the elements in the array Example:

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

2. Slice

A slice is a dynamic A sequence of lengths that can be expanded or contracted if needed. The definition format of slice is as follows:

// 定义一个整型切片
var slice []int

Example of using slice:

slice := []int{1, 2, 3}
slice = append(slice, 4) // 向切片中追加元素

3. Map

Map is a collection of key-value pairs, also known as dictionary. In Go language, mapping can be defined in the following way:

// 定义一个字符串到整数的映射
var m map[string]int
m = make(map[string]int)

Example of mapping:

m := map[string]int{
    "apple": 10,
    "banana": 5,
}
m["orange"] = 8 // 添加新的键值对

4. Structure (Struct)

The structure is a kind of automatic The defined composite data type can contain fields of different types. In the Go language, a structure can be defined in the following way:

// 定义一个表示人的结构体
type Person struct {
    Name string
    Age  int
}

Example of using a structure:

p := Person{Name: "Alice", Age: 30}
fmt.Println(p.Name, p.Age)

5. Pointer (Pointer)

A pointer is a kind of storage The special data type of variable memory address also supports pointer operations in the Go language. The definition and usage examples of pointers are as follows:

// 定义一个指向整数的指针
var ptr *int
num := 10
ptr = &num
fmt.Println(*ptr) // 输出指针所指向的值

Through the introduction and code examples of this article, readers can not only understand the common data structures supported by the Go language, but also have a deeper understanding of the application of these data structures in actual development. . I hope this article can provide some help to everyone in the process of learning and using the Go language.

The above is the detailed content of What data structures does Go language support?. For more information, please follow other related articles on the PHP Chinese website!