September 2014
Intermediate to advanced
332 pages
6h 48m
Japanese
Content preview from Python文法詳解
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139
4.6 バイト列
バイト列を入れて連結します。
iterable
が返すオブジェクトが、バイト列や
bytearray
など、連結できるオブジェクトでなけ
れば、
TypeError
例外を送出します。
パラメタ
iterable
ー
バイト列を要素とするイテラブルオブジェクトを指定します。
>>> b'-'.join([b'spam', b'ham', b'egg'])
b'spam-ham-egg'
>>> b''.join([b'spam', b'ham', b'egg'])
b'spamhamegg'
bytes.ljust(width[,
fillchar
])
width
で指定したバイト数で、左揃えにしたバイト列を返します。バイト列の後ろは、
fillchar
で指定した文字で補完します。
fillchar
省略時はスペースとなります。
パラメタ
width
−
全体のバイト数を指定します。
fillchar
−
余白を埋めるバイト列を指定します。
>>> b'spam'.ljust(10)
b'spam '
bytes.lower()
小文字に変換したバイト列を返します。
>>> b'A'.lower()
b'a'
bytes.lstrip([
bytes
])
バイト列の先頭にある空白文字を全て削除します。
bytes
を省略した場合、または
None
を指定
した場合は、全ての空白文字を削除します。
パラメタ
bytes
−
削除する文字のバイト列を指定します。
>>> b' spam '.lstrip()
b'spam '
140
第
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