将两个LISTS的值的SUM添加到新的LIST中

Question

我有以下两个清单:

first = [1,2,3,4,5]
second = [6,7,8,9,10]

现在我想将两个列表的项目添加到新列表中.

输出应该是

third = [7,9,11,13,15]

Answer 1

此zip功能在此处很有用,与列表推导一起使用.

[x + y for x, y in zip(first, second)]

如果您有一个列表列表(而不是只有两个列表):

lists_of_lists = [[1, 2, 3], [4, 5, 6]]
[sum(x) for x in zip(*lists_of_lists)]
# -> [5, 7, 9]

Answer 2

来自docs

import operator
list(map(operator.add, first,second))

Answer 3

假设两个列表a,并b具有相同的长度,你不需要压缩,numpy的或其他任何东西.

Python 2.x和3.x:

[a[i]+b[i] for i in range(len(a))]

Answer 4

numpy中的默认行为是按分数添加

import numpy as np
np.add(first, second)

哪个输出

array([7,9,11,13,15])

Answer 5

这扩展到任意数量的列表:

[sum(sublist) for sublist in itertools.izip(*myListOfLists)]

在你的情况下,myListOfLists将是[first, second]

Answer 6

请尝试以下代码:

first = [1, 2, 3, 4]
second = [2, 3, 4, 5]
third = map(sum, zip(first, second))

Answer 7

简单的方法和快速的方法是:

three = [sum(i) for i in zip(first,second)] # [7,9,11,13,15]

或者,你可以使用numpy sum:

from numpy import sum
three = sum([first,second], axis=0) # array([7,9,11,13,15])

Answer 8

first = [1, 2, 3, 4, 5]
second = [6, 7, 8, 9, 10]
three = map(lambda x,y: x+y,first,second)
print three



Output 
[7, 9, 11, 13, 15]

Answer 9

单线解决方案

list(map(lambda x,y: x+y, a,b))