如何在Python中生成ndarray

import numpy as np

data1 = [1, 2, 3, 4]

data2 = [[1, 2, 3, 4], [5, 6, 7, 8]]

arr1 = np.array(data1)

arr2 = np.array(data2)

arr1 = arr1 * 10

arr2 = arr2 + arr1

print(arr1)

print(arr2)

[10 20 30 40]

[[11 22 33 44]

[15 26 37 48]]