September 2014
Intermediate to advanced
332 pages
6h 48m
Japanese
Content preview from Python文法詳解
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132
第 4 章 シーケンスとコンテナ型
bytes(
iterable_of_ints
)
0
〜
255
の整数を要素として持つイテラブルオブジェクトを指定すると、その値を要素としたバ
イト列オブジェクトを作成します。
パラメタ
iterable_of_ints
ー
0
〜
255
の整数を要素として持つイテラブルオブジェクトを指定します。
>>> bytes([1,2,3,4,5])
b'\x01\x02\x03\x04\x05'
>>> bytes(b'abcdefg')
b'abcdefg'
classmethod bytes.fromhex(
string
)
16
進数でバイト列の要素を指定した文字列から、バイト列を作成するクラスメソッドです。各
要素は二桁の
16
進数で指定し、要素間のスペースは無視されます。
fromhex()
はクラスメソッド
で、
bytes.fromhex()
のように、
bytes
型のメソッドとして呼び出します。
パラメタ
string
−
16
進数の文字列を指定します。
>>> bytes.fromhex('73 70 61 6d')
b'spam'
4.6.2
バイト列の演算子
バイト列オブジェクトは、シーケンス型に属するオブジェクトなので、
+
による連結や
*
による
繰り返し、比較演算子などをサポートしています。
バイト列オブジェクト同士は、
+
演算子で連結できます。
>>> b'spam' + b'egg'
b'spamegg'
*
演算子は、整数値で指定した回数だけ、バイト列を繰り返します。
>>> b'spam' ...
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