# -*- coding: utf-8 -*-
"""
Created on Wed Aug 22 22:49:50 2018

@author:  天津职业技术师范大学 
@author: 李立宗  lilizong@gmail.com
《opencv图穷匕见-python实现》 电子工业出版社
"""

import numpy as np
list2d =np.arange(18).reshape(3,6)
print(list2d)
print(list2d[::-1])