package main
import "fmt"
// Go’s structs are typed collections of fields. They’re useful for grouping
// data together to form records.
// This person struct type has name and age fields.
type person struct {
name string
age int
}
func main() {
// This syntax creates a new struct.
fmt.Println(person{"Bob", 20})
// You can name the fields when initializing a struct.
fmt.Println(person{name: "Alice", age: 30})
// Omitted fields will be zero-valued.
fmt.Println(person{name: "Fred"})
// An & prefix yields a pointer to the struct.
fmt.Println(&person{name: "Ann", age: 40})
// Access struct fields with a dot.
s := person{name: "Sean", age: 50}
fmt.Println(s.name)
// You can also use dots with struct pointers - the pointers are automatically dereferenced.
sp := &s
fmt.Println(sp.age)
// Structs are mutable.
sp.age = 51
fmt.Println(sp.age)
}
{Bob 20}
{Alice 30}
{Fred 0}
&{Ann 40}
Sean
50
51
Attribution
