使用无循环的numpy将每2个数组堆叠成2D数组

import numpy as np

# 假设有6个数组，每个数组的形状为(3,)
arrays = [np.array([1, 2, 3]), np.array([4, 5, 6]), np.array([7, 8, 9]), np.array([10, 11, 12]), np.array([13, 14, 15]), np.array([16, 17, 18])]

# 将每2个数组堆叠成2D数组
stacked_arrays = np.concatenate([arr.reshape(1, -1) for arr in arrays], axis=0)

print(stacked_arrays)

[[ 1  2  3]
 [ 4  5  6]
 [ 7  8  9]
 [10 11 12]
 [13 14 15]
 [16 17 18]]