June 2021
Intermediate to advanced
286 pages
6h 29m
German
Content preview from Think Python, 2nd Edition
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KAPITEL 5
Bedingungen und Rekursion
Das Hauptthema dieses Kapitels ist die if-Anweisung, die abhängig vom Zustand des Programms verschiedenen Code ausführt. Doch zuerst möchte ich zwei neue Operatoren einführen: Floor-Division und Modulo.
Floor-Division und Modulo
Die Floor-Division // teilt zwei Zahlen und rundet sie auf eine ganze Zahl ab. Nehmen wir beispielsweise an, dass ein Film 105 Minuten läuft. Sie möchten nun wissen, wie lange das in Stunden dauert. Eine normale Division gibt eine Fließkommazahl zurück:
>>> minuten = 105
>>> minuten / 60
1.75
Doch bei Stunden verwenden wir üblicherweise keinen Dezimalpunkt. Die Floor-Division gibt uns die Stunden als abgerundeten Integerwert zurück:
>>> minuten = 105
>>> stunden = minuten // 60
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