YDOOK：numpy 定义数组：ndmin= 定义数组的最小维度

numpy 定义数组：ndmin= 定义数组的最小维度

import numpy as np a = np.array([1, 2, 3]) print(a) print(type(a)) b = np.array([1, 2, 3], ndmin=3) print(b) print(type(b))

结果

[1 2 3] <class 'numpy.ndarray'> [[[1 2 3]]] <class 'numpy.ndarray'> Process finished with exit code 0