Files
the-way-to-go_ZH_CN/eBook/examples/chapter_10/person.go
2015-03-03 12:25:25 -05:00

41 lines
1019 B
Go

package main
import (
"fmt"
"strings"
)
type Person struct {
firstName string
lastName string
}
func upPerson (p *Person) {
p.firstName = strings.ToUpper(p.firstName)
p.lastName = strings.ToUpper(p.lastName)
}
func main() {
// 1- struct as a value type:
var pers1 Person
pers1.firstName = "Chris"
pers1.lastName = "Woodward"
upPerson(&pers1)
fmt.Printf("The name of the person is %s %s\n", pers1.firstName, pers1.lastName)
// 2 - struct as a pointer:
pers2 := new(Person)
pers2.firstName = "Chris"
pers2.lastName = "Woodward"
(*pers2).lastName = "Woodward"
upPerson(pers2)
fmt.Printf("The name of the person is %s %s\n", pers2.firstName, pers2.lastName)
// 3 - struct as a literal:
pers3 := &Person{"Chris","Woodward"}
upPerson(pers3)
fmt.Printf("The name of the person is %s %s\n", pers3.firstName, pers3.lastName)
}
/* Output:
The name of the person is CHRIS WOODWARD
The name of the person is CHRIS WOODWARD
The name of the person is CHRIS WOODWARD
*/