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  1. class Cal(object):
  2.     def __init__(self, v1, v2):
  3.         if isinstance(v1, int):
  4.             self.v1 = v1
  5.         if isinstance(v2, int):
  6.             self.v2 = v2
  7.     def add(self):
  8.         return self.v1+self.v2
  9.     def subtract(self):
  10.         return self.v1-self.v2
  11.     def setV1(self, v):
  12.         if isinstance(v, int):
  13.             self.v1 = v
  14.     def getV1(self):
  15.         return self.v1
  16. class CalMultiply(Cal):
  17.     def multiply(self):
  18.         return self.v1*self.v2
  19. class CalDivide(CalMultiply):
  20.     def divide(self):
  21.         return self.v1/self.v2
  22. c1 = CalMultiply(10,10)
  23. print(c1.add())
  24. print(c1.multiply())
  25. c2 = CalDivide(20,10)
  26. print(c2, c2.add())
  27. print(c2, c2.multiply())
  28. print(c2, c2.divide())
  29.  
Success #stdin #stdout 0.02s 8736KB
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stdin
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Standard input is empty
stdout
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20
100
<__main__.CalDivide object at 0xb753322c> 30
<__main__.CalDivide object at 0xb753322c> 200
<__main__.CalDivide object at 0xb753322c> 2.0
https://ideone.com/0UXi6J
language:
Python 3 (python  3.9.5)
created:
8 years ago
visibility:
public

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