Numpy ndarray 获取数组的维度

import numpy as np
temp = np.zeros([2,3,4])
print(type(temp))
print("shape",temp.shape)  # 数组的维度
print("size",temp.size)  # 元素的个数
print("ndim",temp.ndim)  # 有多少个维度
print("len",temp.__len__())  # 数组第一维度的大小
print("len",len(temp))

doc = """
|  shape : tuple of ints
|      Shape of the array.

|  size : int
|      Number of elements in the array.

|  ndim : int
|      The array's number of dimensions.

|  __len__(self, /)
|      Return len(self).
"""

<class 'numpy.ndarray'>
shape (2, 3, 4)
size 24
ndim 3
len 2
len 2