oop - Golang，调用 parent 的方法

Question

从下面的例子来看，Child 对象是否可以调用Parent 的方法？例如，我想让 child (男孩 1 和女孩 1)调用 parent 的“记住”方法；这样 parent 就可以记住 child 想让他们记住的东西。

非常感谢

package main

import "fmt"

type child struct {
    Name string 
}

func (p *child) Yell() {
    fmt.Println("Child's yelling")
}

type parent struct {
    Name string 
    Children []child
    Memory []string
}

func (p *parent) Yell() {
    fmt.Println("Parent's yelling")
}

func (p *parent) Remember(line string) {
    p.Memory = append(p.Memory, line)
}

func main() {
    p := parent{}
    p.Name = "Jon"
    boy1 := child{}
    boy1.Name = "Jon's boy"
    girl1 := child{}
    girl1.Name = "Jon's girl"
    p.Children = append(p.Children, boy1)
    p.Children = append(p.Children, girl1)
    fmt.Println(p)

    p.Yell()
    for i:=0;i<len(p.Children);i++ {
        p.Children[i].Yell()
    }
}

感谢@Jim，这是解决方案。指针总是令人困惑。

主要包

import "fmt"

type child struct {
    Name string
    prnt *parent
}

func (p *child) Yell() {
    fmt.Println("Child's yelling")
}

type parent struct {
    Name     string
    Children []child
    Memory   []string
}

func (p *parent) Yell() {
    fmt.Println("Parent's yelling")
}

func (p *parent) Remember(line string) {
    p.Memory = append(p.Memory, line)
}

func main() {
    p := parent{}
    p.Name = "Jon"
    boy1 := child{}
    boy1.Name = "Jon's boy"
    boy1.prnt = &p
    girl1 := child{}
    girl1.Name = "Jon's girl"
    girl1.prnt = &p

    p.Children = append(p.Children, boy1)
    p.Children = append(p.Children, girl1)
    fmt.Println(p)

    p.Yell()
    for i := 0; i < len(p.Children); i++ {
        p.Children[i].Yell()
        p.Children[i].prnt.Remember("test:" + p.Children[i].Name)
    }

    fmt.Println(p.Memory)
}

Answer 1

您可以在子结构中添加指向父结构的指针

type child struct {
    Name string
    parent *parent
}

func (p *child) Yell() {
    fmt.Println("Child's yelling")
    p.parent.Remember(p.Name + " called")
    p.parent.Yell()
}