Question

可能重复：
  Making a flat list out of list of lists in Python
  Join a list of lists together into one list in Python

我有很多看起来像

的列表

['it']
['was']
['annoying']

我希望上面看起来像

['it', 'was', 'annoying']

我如何实现这一目标？

Answer 1

只需添加它们：

['it'] + ['was'] + ['annoying']

您应该阅读the Python tutorial以了解此类基本信息。

Answer 2

import itertools
ab = itertools.chain(['it'], ['was'], ['annoying'])
list(ab)

只是另一种方法......

Answer 3

a = ['it']
b = ['was']
c = ['annoying']

a.extend(b)
a.extend(c)

# a now equals ['it', 'was', 'annoying']