Unterricht Dienstag

grundlagen/fraction.py

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+# Operatoren und magische Methoden
+# https://docs.python.org/3/reference/datamodel.html#emulating-numeric-types\
+
+class Fraction:
+    def __init__(self, numerator:int, denominator:int):
+        self.numerator = numerator
+        self.denominator = denominator
+
+    def ausgabe(self):
+        print(self.numerator, "/", self.denominator)
+
+    def __add__(self, other):  # Erlaubt es uns, zwei Objekte miteinander zu addieren
+        numerator = self.numerator * other.denominator + other.numerator * self.denominator
+        denominator = self.denominator * other.denominator
+        return Fraction(numerator, denominator)
+
+    def __str__(self):  # Entspricht der ToString() Methode
+        return str(self.numerator) + "/" + str(self.denominator)
+
+    def __del__(self):  # Destruktor
+        print(self.__class__)