February 2012
Intermediate to advanced
435 pages
15h 13m
French
Content preview from Apprendre à programmer avec Python 3
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4
Instructions répétitives
L’une des tâches que les machines font le mieux est la répétition sans erreur de tâches identiques. Il existe bien des méthodes pour programmer ces tâches répétitives. Nous allons commencer par l’une des plus fondamentales : la boucle de répétition construite autour de l’instruction while.
Réaffectation
Nous ne l’avions pas encore signalé explicitement : il est permis de ré-affecter une nouvelle valeur à une même variable, autant de fois qu’on le souhaite.
L’effet d’une ré-affectation est de remplacer l’ancienne valeur d’une variable par une nouvelle.
>>> altitude = 320
>>> print (altitude)
320
>>> altitude = 375
>>> print (altitude)
375
Ceci nous amène à attirer une nouvelle fois votre attention sur le fait que ...
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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.
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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.