[GO]匿名字段

package mainimport ("fmt"
)type Person struct {name stringsex byteage int
}type Student struct {Person    //只有名字，没有字段，这里student相当于继承了person的所有字段，就有点像是继承了id intaddr string
}func main() {//来一个顺序初始化var s1 Student = Student{Person{"baylor", 'm', 18}, 1, "NJ"}fmt.Println("s1 = ", s1)//再来一个自动推导类型s2 := Student{Person{"baylor", 'm', 18}, 1, "NJ"}fmt.Printf("s2 = %+v\n", s2) //这里是打印出详细的方式//上面是顺序自动推导，再来一个不一样的s3 := Student{Person:Person{name: "baylor", age:18}, id:3}fmt.Printf("s3 = %+v\n", s3)
}

执行的结果

s1 =  {{baylor 109 18} 1 NJ}
s2 = {Person:{name:baylor sex:109 age:18} id:1 addr:NJ}
s3 = {Person:{name:baylor sex:0 age:18} id:3 addr:}

一定要记住的是Person也是一个结构体，那么在通过匿名字段进行初始化的时候一定要指定Person，造成不要写成

s1 ：= Student{"baylor", 'm', 18, 1, "NJ"}

 ====================华丽的分隔线 ====================

匿名函数成员的操作

package mainimport ("fmt"
)type Person struct {name stringsex byteage int
}type Student struct {Person    //只有名字，没有字段，这里student相当于继承了person的所有字段，就有点像是继承了id intaddr string
}func main() {var s1 Student = Student{Person{"baylor", 'm', 18}, 1, "NJ"}//进行一个取值fmt.Println("s1.name = ", s1.name)//进行赋值s1.name = "mike"s1.sex = 'm's1.age = 1s1.id = 1s1.addr = "NJ"fmt.Println("s1 = ", s1)//进行匿名字段的赋值s1.Person = Person{"yoyo", 'f', 2}fmt.Println("s1 = ", s1)
}

执行的结果

s1.name =  baylor
s1 =  {{mike 109 1} 1 NJ}
s1 =  {{yoyo 102 2} 1 NJ}