python - python中的基本矩阵转置

Question

我尝试了 python 中最基本的矩阵转置方法。但是，我没有得到所需的结果。下面是代码:

A = [ [1, 1, 1, 1], 
    [2, 2, 2, 2], 
    [3, 3, 3, 3], 
    [4, 4, 4, 4]] 

#print (A)
def TS (A):
    B = A
    for i in (range(len(A))):
        for j in (range(len(A))):
            A[i][j] = B [j][i]
TS(A)
#print (A)

for i in range(len(A)): 
    for j in range(len(A)): 
        print(B[i][j], " ", end='') 
    print() 

这是我得到的结果:

1  2  3  4  
2  2  3  4  
3  3  3  4  
4  4  4  4  

Answer 1

你为什么不试试 numpy :)

import numpy as np
z = np.transpose(np.array(A))