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
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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.
Chapter
3
96
64
100
78
80
72
リストの 中の点数を足す
for
文
次は「リスト（scorelist）の中に入っている点数の合計を求めるプログラム」を作ってみ
ましょう。
使う「リスト」は、点数の入っている
scorelistです。これを順番に取り出して足していけ
ば合計値がわかります。
合計値を求めるので合計値用変数（
total）を用意して、あらかじめ０にリセットしてお
きます。「くり返す処理」は、「リストから取り出した値を、合計値用変数に足すこと」で
す。くり返しが終わったら、
total変数に合計値が求まるので表示します。これはくり返し
が終わったあとに
1回だけ行えばいいので、インデントのあとにインデントせずに行います。
プログラムで見てみましょう（
for2.pyと異なる部分にはマーカーを入れているよ）。
出力結果
リストから順番に
出てきたよ！
for
in
scorelist
i
6464
100100
7878
8080
7272
64 100
80
7278
0 1 2 3 4
Chapter
3
96
64
100
78
80
72
リストの 中の点数を足す
for
文
次は「リスト（scorelist）の中に入っている点数の合計を求めるプログラム」を作ってみ
ましょう。
使う「リスト」は、点数の入っている
scorelistです。
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
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.