January 2023
Intermediate to advanced
458 pages
14h 16m
Chinese
Content preview from 可编程网络自动化
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在网络场景中学习
Python
｜
117
提醒一下，使用类的对象的方法和使用不同数据类型（比如字符串、列表
和字典）的方法一样。虽然创建类属于高级主题，但至少应该知道如何使
用类。
如果对
switch2
和
switch3
使用
show
方法，就可以得到预期的返回数据，因为每个对象
都是
Device
的不同实例。
下面这个简短的例子展示了创建两个
Device
对象并使用对象获得各个设备的
show
hostname
输出。示例中所使用的库默认会返回
XML
格式的数据，如果需要的话，也可
以轻松地更改为
JSON
格式。
>>> switch1 = Device(ip='nycsw01', username='cisco', password='cisco')
>>> switch2 = Device(ip='nycsw02', username='cisco', password='cisco')
>>>
>>> switches = [switch1, switch2]
>>>
for
switch
in
switches:
... response = switch.show('show hostname')[1]
...
print
(response)
...
# 略去输出
>>>
4.14
小结
本章为网络工程师粗略介绍了
Python
，涵盖了包括数据类型、条件语句、循环、函数和文
件在内的基础概念，甚至还包括如何创建
Python
模
块，以便在不同的
Python
程序
/
脚本
中重用相同的代码。最后，我们给出了一些提示、技巧以及一般信息，在今后的 ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.