go 继承

package main

import "fmt"

type Animal struct {
	Color string
}

// 继承动物结构体
type Dog struct {
	Name string
	Animal
}

// dog方法 类似类方法
func (d *Dog) speak() string  {
	return "I am a dog and my name is "+ d.Name
}

func (a *Animal) eat()  {
	fmt.Println("我在吃东西 我的颜色是"+a.Color)
}

func TestStruct()  {
	d := Dog{Name:"killy"}
	d.Color = "green"
	st := d.speak()
	d.eat()

	fmt.Println(st)
}

func main()  {

	TestStruct()

}

　　

GOROOT=/usr/local/go #gosetup
GOPATH=/www/gopath #gosetup
/usr/local/go/bin/go build -i -o /private/var/folders/fc/4txmmczj6q92p6058h3w7t_80000gn/T/___go_build_main_go__2_ /www/go/learn/main.go #gosetup
/private/var/folders/fc/4txmmczj6q92p6058h3w7t_80000gn/T/___go_build_main_go__2_ #gosetup
我在吃东西 我的颜色是green
I am a dog and my name is killy

Process finished with exit code 0