numpy 打乱 numpy 数组

numpy 打乱 numpy 数组 numpy 打乱 numpy 数组

import numpy as np

a1 = np.arange(0,8).reshape(4,2)
print(a1)

[[0 1]
 [2 3]
 [4 5]
 [6 7]]

np.random.shuffle(a1) # 打乱数组a1
print(a1)

[[4 5]
 [2 3]
 [6 7]
 [0 1]]