March 2018
Beginner to intermediate
624 pages
16h 10m
Japanese
Content preview from Head First Python 第2版 ―頭とからだで覚えるPythonの基本
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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.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.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.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.
このコードを実行すると
シェルに下のように
出力されます。
38
1
章
ビールに本気になる
本格的なビジネスアプリケーションのコードを書く
『
Head First Java
』に感謝しつつ、古典的な最初の本格的なアプリケーションである
「ビールの歌」の
Python
バージョンを考えてみます。
下の図はビールの歌のコードの
Python
バージョンのスクリーンショットです。
range
関数の使い方が少し異なること以外は（詳しくはすぐに説明します）、この
コードのほとんどを理解できるはずです。
IDLE
の編集ウィンドウにはコードが表示
され、プログラムの出力の末尾がシェルウィンドウに表示されています。
すべてのビールを扱う
上のコードを
IDLE
の編集ウィンドウに入力して
保存してから［
F5
］を押すと、シェルに多くの行が出
力されます。このビールの歌は壁に
99
本のビールが
あるところから始まり、ビールがなくなるまでカウ
ントダウンしていきます。右側のウィンドウに出力
結果の一部だけを示しました。実際には、このコー
ド
では、「カウントダウン」について工夫しています。
コードを詳しく調べる前にカウントダウンの仕組み
を調べてみましょう。
Python
のコードは読みやすい
このコードは本当に読み
やすいね。だけど、何か
罠があるんじゃないの？
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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.