將2添加到列表[[23,34]，[34,23]]

Question

我有一個列表看起來像[[23,34],[43,23]]，我想爲每個數字添加一個int，所以說如果我想添加2到它的列表成爲[[25,36],[45,25]]

Answer 1

>>> nums = [[23,34],[43,23]] 
>>> [[y + 2 for y in x] for x in nums] 
[[25, 36], [45, 25]] 

Answer 2

numpy的：

import numpy as np 
a = np.array([[23,34],[43,23]]) 
b = a + 2 #inplace: a += 2