April 2020
Intermediate to advanced
506 pages
20h 7m
Polish
Content preview from Go
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
8 Rozdział 1.
Funkcje i pakiety
Używanie funkcji z innych pakietów
Kod z pierwszego programu jest częścią pakietu
main
, jednak funkcja
Println
znajduje się w pakiecie
fmt
(od ang. format). Aby móc wywołać
funkcję
Println
, trzeba zaimportować zawierający ją pakiet.
package main
import “fmt”
func main() {
fmt.Println(“Witaj, Go!”)
}
Informuje, że wywoływana jest
funkcja należąca do pakietu fmt
Przed uzyskaniem dostępu do funkcji
Println trzeba zaimportować pakiet fmt
Po zaimportowaniu pakietu można uzyskać dostęp do wszystkich zawartych w nim
funkcji. W tym celu należy wpisać nazwę pakietu, kropkę i nazwę potrzebnej funkcji.
fmt.Println()
Nazwa pakietu ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.