April 2020
Intermediate to advanced
506 pages
20h 7m
Polish
Content preview from Go
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22 Rozdział 1.
Konwersje typów
Konwersje
Operacje matematyczne i porównania w Go wymagają używania wartości
tego samego typu. Użycie wartości różnych typów spowoduje błąd przy
próbie uruchomienia kodu.
Rozwiązaniem jest zastosowanie
konwersji
, pozwalających
przekształcać wartości jednego typu na inny typ. Wystarczy
podać typ, na jaki chcesz przekształcić wartość, a następnie
modyfikowaną wartość w nawiasie.
To samo dotyczy przypisywania nowych wartości do zmiennych. Jeśli typ przypisywanej
wartości nie pasuje do typu z deklaracji zmiennej, zgłoszony zostanie błąd.
Wynikiem jest nowa wartość oczekiwanego typu. Oto co otrzymasz
po wywołaniu funkcji ...
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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.