April 2020
Intermediate to advanced
506 pages
20h 7m
Polish
Content preview from Go
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Jaki kod uruchomić w następnej kolejności?
Instrukcje warunkowe
Jeśli program napotka błąd w trakcie wczytywania danych
wejściowych z klawiatury, zgłosi problem i wstrzyma pracę.
Jednak obecnie program kończy działać także wtedy,
gdy wszystko funkcjonuje poprawnie.
$ go run pass_fail.go
Podaj ocenę: 100
2018/03/11 18:27:08 <nil>
exit status 1
$
System Edycja Widok Okno Pomoc
Funkcje i metody takie jak
ReadString
zwracają wartość błędu
nil
,
informującą, że „nic tu nie ma”. Tak więc zmienna
err
o wartości
nil
oznacza, że błąd nie wystąpił. Jednak program jest tak napisany,
aby zgłaszał błędy
nil
! Tym, co program powinien robić, jest ...
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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.