例子说明一切。
C:\Users\lenovo>python
Python 3.6.1 (v3.6.1:69c0db5, Mar 21 2017, 18:41:36) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy as p
>>> x=p.arange(-2,2)
>>> x
array([-2, -1, 0, 1])
>>> y=p.arange(0,3)
>>> y
array([0, 1, 2])
>>> z,s=p.meshgrid(x,y)
>>> z
array([[-2, -1, 0, 1],
[-2, -1, 0, 1],
[-2, -1, 0, 1]])
>>> s
array([[0, 0, 0, 0],
[1, 1, 1, 1],
[2, 2, 2, 2]])
>>> z,s=p.meshgrid(y,x)
>>> z
array([[0, 1, 2],
[0, 1, 2],
[0, 1, 2],
[0, 1, 2]])
>>> s
array([[-2, -2, -2],
[-1, -1, -1],
[ 0, 0, 0],
[ 1, 1, 1]])
>>>