Question

DICTA={'bw':['BW','VW'],'b':['BB','VV'],'a':['AA']}
DICTB={'yn':['$YN','$YNN'],'ye':['$YE','A$Y'],'y':['Y$']}

如何将该2 Dict的每个可能值提取到

["BWYN","VWYN","BBYN","VVYN","AAYN","BWYNN","VWYNN","BBYNN","VVYNN","AAYNN",
"BWYE","VWYE","BBYE","VVYE","AAYE","ABWY","AVWY","ABBY","AVVY","AAAY",
"YBW","YVW","YBB","YVV","YAA"]

PS：订单无关紧要

PPS：不是家庭作业，而是想知道如何以有效的方式实施。

Answer 1

以下基本主题的许多可能的小变体：

print [y.replace('$', x)
  for y in (v for y in DICTB.values() for v in y)
  for x in (v for y in DICTA.values() for v in y)
]

Answer 2

我喜欢自己选择itertools，但与Alex的解决方案基本相同：

from itertools import product

[
    y.replace('$', x)
    for (x, y) in product(sum(DICTA.values(), []), sum(DICTB.values(), []))
]

如何提取python Dict的值的每个可能值列表

2 个答案: