版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/u010255642/article/details/82053115
# -*- coding: utf-8 -*-
"""
Spyder Editor
This is a temporary script file.
"""
import mxnet as mx
import numpy as np
x = mx.nd.arange(0,3).reshape((1,3,1))
print x
y = x.broadcast_to((2,3,3))
print y
x = mx.nd.array([1, 2, 3, 4])
print x.ndim
x = mx.nd.array([[1, 2], [3, 4]])
print x.ndim
print y.shapeshape:形状
ndim:维度
broadcast:广播，但不改变维度
[[[0.]
[1.]
[2.]]]
<NDArray 1x3x1 @cpu(0)>
[[[0. 0. 0.]
[1. 1. 1.]
[2. 2. 2.]]
[[0. 0. 0.]
[1. 1. 1.]
[2. 2. 2.]]]
<NDArray 2x3x3 @cpu(0)>
1
2
(2L, 3L, 3L)