我有以下變數；
D8 =[22, 27, 28, 30, 31, 40, 41, 42, 43, 45]
D9 = [79, 80, 90, 92, 93, 97, 98, 104, 105, 109]
D10=[61, 64, 66, 70, 72, 76, 81, 86, 87]
通過使用上述變數，我嘗試生成所有可能的組合，如下所示；
import itertools
stuff = [D8, D9, D10]
for L in range(0, len(stuff) 1):
for subset in itertools.combinations(stuff, L):
print(subset)
結果描述如下；
Output>>>
()
([22, 27, 28, 30, 31, 40, 41, 42, 43, 45],)
([79, 80, 90, 92, 93, 97, 98, 104, 105, 109],)
([61, 64, 66, 70, 72, 76, 81, 86, 87],)
([22, 27, 28, 30, 31, 40, 41, 42, 43, 45], [79, 80, 90, 92, 93, 97, 98, 104, 105, 109])
([22, 27, 28, 30, 31, 40, 41, 42, 43, 45], [61, 64, 66, 70, 72, 76, 81, 86, 87])
([79, 80, 90, 92, 93, 97, 98, 104, 105, 109], [61, 64, 66, 70, 72, 76, 81, 86, 87])
([22, 27, 28, 30, 31, 40, 41, 42, 43, 45], [79, 80, 90, 92, 93, 97, 98, 104, 105, 109], [61, 64, 66, 70, 72, 76, 81, 86, 87])
我想知道是否有任何其他更清潔的方法來生成上述結果，因為在當前輸出中我不能將每個結果平成每個單獨的結果？預期的結果應該是這樣的？
Expected Result>>>
([])
([22, 27, 28, 30, 31, 40, 41, 42, 43, 45])
([79, 80, 90, 92, 93, 97, 98, 104, 105, 109])
([61, 64, 66, 70, 72, 76, 81, 86, 87])
([22, 27, 28, 30, 31, 40, 41, 42, 43, 45, 79, 80, 90, 92, 93, 97, 98, 104, 105, 109])
([22, 27, 28, 30, 31, 40, 41, 42, 43, 45, 61, 64, 66, 70, 72, 76, 81, 86, 87])
([79, 80, 90, 92, 93, 97, 98, 104, 105, 109, 61, 64, 66, 70, 72, 76, 81, 86, 87])
([22, 27, 28, 30, 31, 40, 41, 42, 43, 45, 79, 80, 90, 92, 93, 97, 98, 104, 105, 109, 61, 64, 66, 70, 72, 76, 81, 86, 87])
先謝謝了！！！
uj5u.com熱心網友回復：
該itertools檔案包含配方flatten：
def flatten(list_of_lists):
"Flatten one level of nesting"
return chain.from_iterable(list_of_lists)
您需要應用兩次才能獲得所需的結果：
from itertools import combinations, chain
D8 = [22, 27, 28, 30, 31, 40, 41, 42, 43, 45]
D9 = [79, 80, 90, 92, 93, 97, 98, 104, 105, 109]
D10 = [61, 64, 66, 70, 72, 76, 81, 86, 87]
stuff = [D8, D9, D10]
def flatten(list_of_lists):
"""Flatten one level of nesting"""
return chain.from_iterable(list_of_lists)
result = flatten(map(flatten, combinations(stuff, length)) for length in range(len(stuff) 1))
for xs in result:
print(list(xs))
生產：
[]
[22, 27, 28, 30, 31, 40, 41, 42, 43, 45]
[79, 80, 90, 92, 93, 97, 98, 104, 105, 109]
[61, 64, 66, 70, 72, 76, 81, 86, 87]
[22, 27, 28, 30, 31, 40, 41, 42, 43, 45, 79, 80, 90, 92, 93, 97, 98, 104, 105, 109]
[22, 27, 28, 30, 31, 40, 41, 42, 43, 45, 61, 64, 66, 70, 72, 76, 81, 86, 87]
[79, 80, 90, 92, 93, 97, 98, 104, 105, 109, 61, 64, 66, 70, 72, 76, 81, 86, 87]
[22, 27, 28, 30, 31, 40, 41, 42, 43, 45, 79, 80, 90, 92, 93, 97, 98, 104, 105, 109, 61, 64, 66, 70, 72, 76, 81, 86, 87]
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