There is a set of lists, a, b, c,..., and I want to continuously add this set of lists to the same list, for example:
`a = ['a']
b = ['b']
c = ['c']
addall = [['a'], ['b'], ['c']]`
I only thought of using a for loop to do this. Is there any more pythonic method?
巴扎黑2017-05-18 11:00:37
There is no need to pay too much attention to the form, just be concise and easy to understand
a = ['a']
b = ['b']
c = ['c']
tt=[]
tt.append(a)
tt.append(b)
tt.append(c)
print tt
#输出[['a'], ['b'], ['c']]
淡淡烟草味2017-05-18 11:00:37
In [1]: a = ['a', 'b', 'c']
In [2]: b = ['d', 'e', 'f']
In [3]: import itertools
In [4]: itertools.chain(a, b)
Out[4]: <itertools.chain at 0x30fcd90>
In [5]: list(itertools.chain(a, b))
Out[5]: ['a', 'b', 'c', 'd', 'e', 'f']
怪我咯2017-05-18 11:00:37
python2,3
In [6]: a=['a']
In [7]: b=['b']
In [8]: a.extend(b)
In [9]: a
Out[9]: ['a', 'b']
python2,3, I think this is more natural!
In [1]: a=['a']
In [2]: b=['b']
In [3]: a+b
Out[3]: ['a', 'b']
python3
In [1]: a=['a']
In [2]: b=['b']
In [3]: [*a,*b]
Out[3]: ['a', 'b']
