November 2024
Intermediate to advanced
836 pages
29h 1m
French
Content preview from Programmation C# 10
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Chapitre 5. Les collections
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La plupart des programmes doivent traiter plusieurs données. Ton code peut avoir à itérer sur certaines transactions pour calculer le solde d'un compte, par exemple, ou afficher les messages récents dans une application web de médias sociaux, ou encore mettre à jour les positions des personnages dans un jeu. Dans la plupart des applications, la capacité à travailler avec des collections d'informations est probablement importante.
C# propose un type de collection simple appelé tableau. Le système de types du CLR prend intrinsèquement en charge les tableaux, ils sont donc efficaces, mais pour certains scénarios, ils peuvent être trop basiques, c'est pourquoi les bibliothèques d'exécution s'appuient sur les services fondamentaux fournis par les tableaux pour proposer des types de collection plus puissants et plus flexibles. Je vais commencer par les tableaux, car ils sont à la base de la plupart des classes de collection.
Tableaux
Un tableau est un objet qui contient plusieurs éléments d'un type particulier. Chaque élément est un emplacement de stockage similaire à un champ, mais alors qu'avec les champs nous donnons un nom à chaque emplacement de stockage, les éléments d'un tableau sont simplement numérotés. Le nombre d'éléments est fixe pour toute la durée de vie du tableau, tu dois donc en spécifier la taille lorsque tu ...
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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.