Go language self-study series | golang nested structure

Video source ：B standing 《golang Introduction to project practice [2021 newest Go Language course , There is no nonsense , Dry only ！ Ongoing update ...]》

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go Language has no idea of object-oriented programming , There is no inheritance , However, this effect can be achieved through structure nesting .

The following is an example to demonstrate how to realize structure nesting , If there is a person Person Structure , This man also has a pet Dog Structure

So let's see ：

Dog Structure

type Dog struct {
    name  string
    color string
    age   int
}

Person Structure

type person struct {
    dog  Dog
    name string
    age  int
}

Visit them

package main

import "fmt"

type Dog struct {
    name  string
    color string
    age   int
}

type person struct {
    dog  Dog
    name string
    age  int
}

func main() {
    var tom person
    tom.dog.name = " tearful "
    tom.dog.color = " Black and white flower "
    tom.dog.age = 2

    tom.name = "tom"
    tom.age = 20

    fmt.Printf("tom: %v\n", tom)
}

Running results

[Running] go run "d:\SynologyDrive\ software development \go\golang Introduction to project practice \goproject\360duote.com\pro01\test.go"
tom: {
   { tearful   Black and white flower  2} tom 20}