沙鷗工作室

func main() {
    p1 := struct {
        first string
        last  string
        age   int
    }{
        first: "James",
        last:  "Bond",
        age:   32,
    }
    fmt.Println(p1)
}

type person struct {
	first string
	last  string
	age   int
}

type secretAgent struct {
	person
	ltk   bool
}

func main() {
	sa1 := secretAgent{
		person: person{
			first: "James",
			last:  "Bond",
			age:   32,
		},
		ltk: true,
	}

	p2 := person{
		first: "Miss",
		last:  "Moneypenny",
		age:   27,
	}

	fmt.Println(sa1)
	fmt.Println(p2)

	fmt.Println(sa1.first, sa1.last, sa1.age, sa1.ltk)
	fmt.Println(p2.first, p2.last, p2.age)
}

遷入的struct，會被 promoted，可以直接sa1.first，而不用sa1.person.first

package main

import "fmt"

type person struct {
	first    string
	last     string
	favorite []string
}

func main() {
	p1 := person{
		first: "James",
		last:  "Bond",
		favorite: []string{
			"howhow",
			"tree",
		},
	}

	p2 := person{
		first: "Lisa",
		last:  "Wang",
		favorite: []string{
			"Gan",
			"Man",
		},
	}

	m := map[string]person{
		p1.last: p1,
		p2.last: p2,
	}

	fmt.Println("----------")
	for _, value := range m {
		fmt.Println(value.first)
		fmt.Println(value.last)
		for i, k := range value.favorite {
			fmt.Println(i, k)
		}
		fmt.Println("----------")
	}
}