go语言之进阶篇结构体指针类型匿名字段

1、结构体指针类型匿名字段

示例：

package main

import "fmt"

type Person struct {
        name string //名字
        sex  byte   //性别, 字符类型
        age  int    //年龄
}

type Student struct {
        *Person //指针类型
        id      int
        addr    string
}

func main() {
        s1 := Student{&Person{"mike", 'm', 18}, 666, "bj"}
        fmt.Println(s1.name, s1.sex, s1.age, s1.id, s1.addr)

        //先定义变量
        var s2 Student
        s2.Person = new(Person) //分配空间
        s2.name = "yoyo"
        s2.sex = 'm'
        s2.age = 18
        s2.id = 222
        s2.addr = "sz"
        fmt.Println(s2.name, s2.sex, s2.age, s2.id, s2.addr)

}

执行结果：

mike 109 18 666 bj
yoyo 109 18 222 sz