November 2025
Intermediate to advanced
1172 pages
46h 25m
Portuguese (Portugal, Brazil)
Content preview from Aprendendo Python (Portuguese Edition), 1st Edition
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Capítulo 26. OOP : O panorama geral
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Até agora, neste livro, temos usado o termo “objeto” de forma genérica. Na verdade, o código escrito até este ponto tem sido baseado em objetos — passamosobjetos pelos nossos scripts, usamos- amos-os em expressões, chamamos seus métodos e assim por diante. Para que nosso código seja considerado verdadeiramente orientado a objetos (OO), porém, nossos objetos geralmente também precisam participar de algo chamado hierarquia de herança.
Este capítulo começa nossa exploração detalhada da classe Python — umaestrutura e dispositivo de codificação usados para implementar novos tipos de objetos em Python que suportam herança. Como classes são a principal ferramenta de programação orientada a objetos (OOP) do Python, então também estudaremos os fundamentos da OOP ao longo desta parte do livro. A OOP oferece uma maneira diferente e muitas vezes mais eficaz de programar. Assim como as funções, podemos usar classes para fatorar o código para minimizar a redundância. Ao contrário das funções, as classes facilitam a escrita de novos programas, personalizando o código existente em vez de alterá-lo no local.
Em Python, as classes são criadas com uma nova instrução: class. Como você verá, os objetos definidos com classes podem se parecer muito com os tipos de objetos embutidos que empregamos anteriormente no livro. Na verdade, as classes apenas ...
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