Skip to Content
Python文法詳解
book

Python文法詳解

by 石本 敦夫
September 2014
Intermediate to advanced
332 pages
6h 48m
Japanese
O'Reilly Japan, Inc.
Content preview from Python文法詳解
148
4 章 シーケンスとコンテナ型
bytearray()
bytearray(
string
,
encoding
[,
errors
])
bytearray(
size=0
)
bytearray(
iterable_of_ints
)
>>> bytearray('

', 'utf-8') #
文字列から
bytearray
を作成
bytearray(b'\xe3\x82\xb9\xe3\x83\x91\xe3\x83\xa0')
>>> bytearray([115, 112, 97, 109]) #
数値リストから
bytearray
を作成
bytearray(b'spam')
bytearray
オブジェクトは更新可能なシーケンスで、リストと同じように値を編集できます。
>>> spam = bytearray(b'spam')
>>> spam
bytearray(b'spam')
>>> spam[0] = b'S'[0] #
一文字目を大文字の
'S'(=83)
に変更
bytearray(b'Spam')
>>> spam[0:1] = b's' #
一文字目を小文字の
's'(=115)
に変更
>>> spam
bytearray(b'spam')
>>> spam[0:0] = b'SPAM' #
先頭に
'SPAM'
を挿入
>>> spam
bytearray(b'SPAMspam')
>>> del spam[4:] # 4
文字目以降を削除
>>> spam
bytearray(b'SPAM')
>>> spam[::-1] ...
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

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’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.
Head of Cybersecurity
QuotationMarkI 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.
Field Engineer
QuotationMarkI’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.
Data Platform Tech Lead
QuotationMarkI'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.
Mark W.
Embedded Software Engineer

You might also like

Go言語によるWebアプリケーション開発

Go言語によるWebアプリケーション開発

Mat Ryer, 鵜飼 文敏, 牧野 聡
初めてのPHP

初めてのPHP

David Sklar, 桑村 潤, 廣川 類, 木下 哲也
データサイエンス講義

データサイエンス講義

Rachel Schutt, Cathy O'Neil, 瀬戸山 雅人, 石井 弓美子, 河内 崇, 河内 真理子, 古畠 敦, 木下 哲也, 竹田 正和, 佐藤 正士, 望月 啓充

Publisher Resources

ISBN: 9784873116884Other