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  1. class Hello():
  2. def __init__(self):
  3. print(Hello.sain(), self.bain())
  4.  
  5. @classmethod
  6. def sain(self):
  7. return "Hello world"
  8.  
  9. def bain(self):
  10. return "NO Thank"
  11.  
  12.  
  13.  
  14.  
  15. class Hello2(Hello):
  16. def __init__(self):
  17. print(Hello.sain(),Hello2.sain01(), self.bain01())
  18.  
  19. @classmethod
  20. def sain01(self):
  21. return "aaa"
  22.  
  23. def bain01(self):
  24. return "bbb"
  25.  
  26.  
  27.  
  28.  
  29.  
  30.  
  31. class Hello3:
  32. def __init__(self):
  33. print(self.sain02(), self.bain02())
  34.  
  35. def sain02(self):
  36. return "aaa"
  37.  
  38. def bain02(self):
  39. return "bbb"
  40.  
  41.  
  42.  
  43.  
  44. if __name__ == '__main__':
  45. Hello()
  46. Hello2()
  47. Hello3()
Success #stdin #stdout 0.02s 9408KB
stdin
Standard input is empty
stdout
Hello world NO Thank
Hello world aaa bbb
aaa bbb