September 2024
Intermediate to advanced
1648 pages
52h 56m
Spanish
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Capítulo 11. Asignaciones, expresiones e impresiones
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Ahora que hemos tenido una rápida introducción a la sintaxis de las sentencias de Python, este capítulo comienza nuestro recorrido en profundidad por las sentencias específicas de Python. Empezaremos por lo básico: sentencias de asignación, sentencias de expresión y operaciones de impresión. Ya hemos visto todas ellas en acción, pero aquí completaremos detalles importantes que nos hemos saltado hasta ahora. Aunque son relativamente sencillas, como verás, existen variaciones opcionales para cada uno de estos tipos de sentencias que te resultarán útiles cuando empieces a escribir programas Python realistas.
Declaraciones de asignación
Llevamos tiempo utilizando la sentencia de asignación de Python para asignar objetos a nombres. En su forma básica, escribes el objetivo de una asignación a la izquierda de un signo igual, y el objeto a asignar a la derecha. El objetivo de la izquierda puede ser un nombre o un componente de objeto, y el objeto de la derecha puede ser una expresión arbitraria que calcule un objeto. En su mayor parte, las asignaciones son sencillas, pero aquí tienes algunas propiedades que debes tener en cuenta:
Las asignaciones crean referencias a objetos. Como se explica en el Capítulo 6, las asignaciones de Python almacenan referencias a objetos en nombres o componentes de la estructura de datos . Siempre ...
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