在一行中将值添加到数组

Question

How can I write this code in one-line?

aa = []
for s in complete:
    aa.append(s)

I know there are several solutions. I would really appreciate if you could write them down. Thanks!

Answer 1

like this (be care with strings):

aa.extend(complete)

or with list comprehension:

aa = list(s for s in complete)

or if u want to copy list u can do follow:

aa = complete[:]
aa = complete.copy() # same
aa = list(complete) # same

or just use '+':

aa += complete

Answer 2

只要您需要将aa设置为complete ，就可以使用

aa = complete

Answer 3

列表理解很棒：

aa = [s for s in complete]

Answer 4

If you want to add values to array in one line, it depends how the values are given. If you have another list , you can also use extend:

my_list = []
my_list.extend([1,2,3,4])

Answer 5

To extend aa , use the extend() function:

aa.extend(s for s in complete)

or

aa.extend(complete)

If you simply wanted to equate the two, a simple = is fine:

aa = complete

Answer 6

I like to do such things with a list comprehension:

aa = [s for s in complete]

Though, depending on the type of complete , and whether or not you want to use package like numpy there may be a faster way, such as

import numpy as np
aa = np.array(complete)

I'm sure there are many other ways as well :)