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islower()とは

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islower()とは

islowerとは、pythonの文字列メソッドの一つで、文字列が全て小文字で構成されているかどうかをチェックします。
以下に例を示します。

sample.py
s = "helloworld"
print(s.islower())  # 出力: True

s = "Hello World"
print(s.islower())  # 出力: False

この例では、最初の文字列"helloworld"は全て小文字で構成されいるため、s.islower()はTrueを返します。一方、二つ目の文字列"Hello World"には大文字が含まれているため、s.islower()はFalseを返します。

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