如何将列表列表更改为字符串

Question

I need to get :

'W1NaCl U1NaCl V1NaCl'

from :

[['W1NaCl'], ['U1NaCl'], ['V1NaCl']]

How to get required output in pythonic way

Answer 1

You can do:

[[i] for i in 'W1NaCl U1NaCl V1NaCl'.split()]

Split will chop it into words, and the list comprehension will make the inner-arrays

Answer 2

items = [['W1NaCl'], ['U1NaCl'], ['V1NaCl']]
res = " ".join([item[0] for item in items])

Which yields: W1NaCl U1NaCl V1NaCl