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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引数を追加する
154
4
章
元の関数
丸かっこの中に
引数の名前を
書きます。
この行はもう
必要ありません。
関数は引数を取る
search4vowels
関数を変更して、ユーザに検索する単語の入力を求める代わりに、引数として
単語を渡せるようにしましょう。
引数の追加は簡単です。
def
行の
()
の中に引数の名前を挿入するだけです。すると、この引数名
は関数のブロックの変数となります。これは編集も簡単です。
ユーザに単語の入力を求める行も削除しましょう。これも簡単です。
現在のコードはこうなっています。
この
2
つの編集を行うと、
IDLE
の編集ウィンドウは次のようになります
（注：
docstring
も常に更新するようにします）。
コードを変更したら必ずファイルを保存してから、［
F5
］を押して試して
ください。
input
関数の呼び出しが
なくなっています（この
行はもう必要ないため）。
に答えます
Q
：
Python
の関数には引数は
1
つしか使えないのですか？
A
：いいえ。関数が提供する機能によっていくつでも引数を使えます。意図的に単純な例から始めて、徐々に複雑な例に挑戦します。
引数を使うと、関数では多くのことができます。どんなことができるかをこれから説明していきます。
4
章 コードの再利用
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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.