Python-将两个列表组合成一个列表列表

Question

我想将两个列表组合成一个列表列表。反之亦然。我无法找到任何东西似乎工作，我感到非常新的Python的

例子：

S1 = [1,2,3] 
S2 = [4,5,6,7] 

Expected output 
S = [[1,2,3],[4,5,6,7]] 

，我怎么能拆回来了原始S1和S2？ 例如：

S = [[1,2,3],[4,5,6,7]] 
Expected output 
S1 = [1,2,3] 
S2 = [4,5,6,7] 

Answer 1

这是最简单的解决方案。

>>> S1 = [1,2,3] 
>>> S2 = [4,5,6,7] 
>>> S = [S1, S2] 
>>> S 
[[1, 2, 3], [4, 5, 6, 7]] 

要重新取得您的列表：

>>> S1 = S[0] 
>>> S2 = S[1] 
>>> S1 
[1, 2, 3] 
>>> S2 
[4, 5, 6, 7]