August 2022
Intermediate to advanced
200 pages
5h 16m
Japanese
Content preview from Python1年生 第2版 体験してわかる！会話でまなべる！プログラミングのしくみ
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Chapter
3
60
08
LESSON
プログラムではデータは重要です。データの入れ物や、データの種類を見て
みましょう。
データは「入れ物」に
入れて使う
フタバちゃんは、おやつを食べるとき、どうしてる？「ジュース」は
「コップ」に入れて、「ホットケーキ」は「お皿」にのせて食べるよね。
実はプログラムでも、器は大事なんだ。「データ」も「入れ物」に 入れて
扱うんだよ。この「データの入れ物」のことを「変数（へんすう）」って
いうんだ。
ハカセ〜、おなか、すいてきた〜（グゥ・・）。
おやつもデータも「器」に 入れるのか〜。
器
お菓子（
3
色だんご）
61
データは「入れ物」に入れて使う
LESSON
08
変数の使い方
データは「変数」という「データを入れる箱」に入れて使います。変数に、データを一
時的に保管しておいたり、計算の結果を入れたりするのです。
Pythonでは、他のプログラミング言語と違って、変数をとてもシンプルに作ることがで
きます。「変数名
= 値」と書くだけで、変数を作ることができるのです。例えば、変数aに
10を入れるなら「a = 10」とだけ書きます。
作った変数の中身にアクセスしたいときは、「変数名」を使います。
例えば、変数aの中身を表示するなら「print(a)」と書いて中身にアクセスします。
変数名 = 値
････････････････････変数を作って値を入れる
print(変数名)
････････････････変数の中身を表示する
print
変数
変数
データ
データ
書式：変数の使い方
データを ...
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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.