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来自 , 2021-01-18, 写在 Python, 查看 95 次.
URL http://www.code666.cn/view/78360091
  1. import itertools  
  2. #排列：e.g., 4个数内选2个排列
  3. >>> print list(itertools.permutations([1,2,3,4],2))  
  4. [(1, 2), (1, 3), (1, 4), (2, 1), (2, 3), (2, 4), (3, 1), (3, 2), (3, 4), (4, 1), (4, 2), (4, 3)]  
  5.  
  6. #组合：e.g.,4个数内选2个
  7. >>> print list(itertools.combinations([1,2,3,4],2))  
  8. [(1, 2), (1, 3), (1, 4), (2, 3), (2, 4), (3, 4)]  
  9. #//python/6276

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