import numpy as np
Creating a sample numpy array (in 1D)
ary = np.arange(1, 25, 1)
Converting the 1 Dimensional array to a 2D array
(to allow explicitly column and row operations)
ary = ary.reshape(5, 5)
Displaying the Matrix (use print(ary) in IDE)
print(ary)
This for loop will iterate over all columns of the array one at a time
for col in range(ary.shape[1]):
print(ary[:, col])
![[笔记]深度学习入门 基于Python的理论与实现(四)](https://img-blog.csdnimg.cn/direct/b37e2faf4a6847bd8363fd73d53c4aa9.png)
