April 2020
Intermediate to advanced
506 pages
20h 7m
Polish
Content preview from Go
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86 Rozdział 3.
Własne funkcje
func sayHi() {
fmt.Println(“Cześć!”)
}
Deklaracja rozpoczyna się słowem kluczowym
func
,
po którym następuje nazwa, jaką chcesz nadać funkcji,
nawias
()
, a następnie blok zawierający kod funkcji.
Po zadeklarowaniu funkcji możesz wywoływać ją w innych
miejscach pakietu. Wystarczy podać nazwę funkcji i nawias.
Wywoływany jest wtedy kod z bloku funkcji.
Warto zauważyć, że w wywołaniu
sayHi
nie jest tu podawana
nazwa pakietu i kropka przed nazwą funkcji. Gdy wywołujesz
funkcję zdefiniowaną w bieżącym pakiecie, nie podawaj jego
nazwy. Wywołanie
main.sayHi()
spowoduje błąd kompilacji.
Reguły tworzenia nazw funkcji są takie ...
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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.