• 小整数缓存池
a = 1 b = 1 print(a is b) # True
  • 短字符串
  
# True a = "good" b = "good" print(a is b) # False a = "very good morning" b = "very good morning" print(a is b) # False a = [] b = [] print(a is b)
本文首发于python黑洞网，博客园同步更新

 

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