📅  最后修改于: 2022-03-11 14:46:06.580000             🧑  作者: Mango
import numpy as np
arr = np.array([1, 2, 3, 4])
arr_2D = np.array([[1, 2, 3, 4, 5], [6, 7, 8, 9, 10]])
print(arr.ndim)
print(arr_2D.ndim)