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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Web
アプリケーションの仕様
Web
アプリケーションに何をさせるか
いつものようにいますぐコードを書き始めたいところですが、まずこの
Web
アプリケーションがど
のように機能するかについて考えましょう。
ユーザはお気に入りのブラウザのアドレスバーに、
Web
アプリケーションの
URL
を入力してサービ
スにアクセスします。すると、ブラウザに
Web
ページが表示され、
search4letters
関数への引数
を指定するように要求します。引数を入力したら、ユーザはボタンをクリックして結果を確認します。
最新バージョンの
search4letters
の
def
行を思い出してください。
def
行は、この関数が少
なくとも
1
つ（ただし
2
つまで）の引数（検索対象のフレーズ
phrase
）と、フレーズに含まれているか
を探す文字
letters
を取ることを示しています。引数
letters
はオプションであることを思い出
してください（デフ
ォルトは
aeiou
）。
どのような
Web
ページにするかを紙ナプキンにおおまかに描いてみましょう。こんな感じのペー
ジを考えています。
Web
版の
search4letters
にようこそ！
このフォームを使って検索リクエストを送って
ください。
フレーズ：
文字：
aeiou
準備ができたら、以下のボタンを押してください。
実行！
200
5
章
search4letters
関数
の
def
行。最低
1
つ
（ただし
2
つまで）の
引数を取ります
def search4letters(phrase:str, letters:str='aeiou') ...
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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.