Python - 转换列表

Question

  

可能重复：
  Making a flat list out of list of lists in Python

我有一个列表：

[['22', '14']]

如何将其转换为：

[22, 14]

谢谢。

Answer 1

L = [['22', '14']]
M = [ int(i) for i in L[0] ]

Answer 2

a = [['22','14']]
map(int, a[0])

Answer 3

>>> lis=[['22', '14']]
>>> map(int,sum(lis,[]))
[22, 14]