overloading 2

python-temel/overloading.2.py

@@ -0,0 +1,36 @@
+class Number:
+    def __init__(self, number):
+        self.number = number
+
+    def __add__(self, x):
+        if isinstance(x, (int, float)):
+            return Number(self.number + x)
+        return Number(self.number + x.number)
+
+    def __sub__(self, x):
+        if type(x) is int or type(x) is float:
+            return Number(self.number - x)
+        return Number(self.number - x.number)
+
+    def __mul__(self, x):
+        if isinstance(x, (int, float)):
+            return Number(self.number * x)
+        return Number(self.number * x.number)
+
+    def __truediv__(self, x):
+        if isinstance(x, (int, float)):
+            return Number(self.number / x)
+        return Number(self.number / x.number)
+
+    def __str__(self):
+        return str(self.number)
+
+
+x = Number(10)
+y = Number(20)
+
+z = x + y
+print(z)
+
+z = x + 10
+print(z)