关于#python#的问题，如何解决？

想要请教一下各位，在这张图片上的第二三题用python咋做啊

用if else判断语句
第二题计算需要用到一些math的库
第三题需要多写几个if-else

• 这有个类似的问题, 你可以参考下: https://ask.csdn.net/questions/7487617
• 这篇博客也不错, 你可以看下python报错集
• 除此之外, 这篇博客: Python脚本自动化备份飞塔，华为，思科等设备配置文件。中的 第一步：安装python环境 部分也许能够解决你的问题, 你可以仔细阅读以下内容或跳转源博客中阅读:
  

• 由于：本人使用的是macbook，所以此处的参考性可能不大。

  1. 在自己的电脑/服务器linux主机上安装python；
     MAC系统预装了python2.7版本，对我们是不适用的，所以在官网下载python3.9版本安装,官网地址 python.org
     由于伟大的长城firewall打开网页是可能需要梯子。
     
     下载对应的版本。
  2. 更新pip源
     （1）阿里云 http://mirrors.aliyun.com/pypi/simple/
     （2）豆瓣http://pypi.douban.com/simple/
     （3）清华大学 https://pypi.tuna.tsinghua.edu.cn/simple/
     （4）中国科学技术大学 http://pypi.mirrors.ustc.edu.cn/simple/
     （5）华中科技大学http://pypi.hustunique.com/
  3. pip install netmiko
     已经提前安装过了，此处仅参考命令。

  // pip安装netmiko
  WiliseXdeMacBook-Pro:~ apple$ pip3.9 install netmiko
  Looking in indexes: http://mirrors.aliyun.com/pypi/simple/
  Requirement already satisfied: netmiko in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (3.3.3)
  Requirement already satisfied: scp>=0.13.2 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from netmiko) (0.13.3)
  Requirement already satisfied: setuptools>=38.4.0 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from netmiko) (49.2.1)
  Requirement already satisfied: ntc-templates in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from netmiko) (2.0.0)
  Requirement already satisfied: paramiko>=2.6.0 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from netmiko) (2.7.2)
  Requirement already satisfied: tenacity in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from netmiko) (7.0.0)
  Requirement already satisfied: pyserial in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from netmiko) (3.5)
  Requirement already satisfied: cryptography>=2.5 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from paramiko>=2.6.0->netmiko) (3.4.7)
  Requirement already satisfied: pynacl>=1.0.1 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from paramiko>=2.6.0->netmiko) (1.4.0)
  Requirement already satisfied: bcrypt>=3.1.3 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from paramiko>=2.6.0->netmiko) (3.2.0)
  Requirement already satisfied: cffi>=1.1 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from bcrypt>=3.1.3->paramiko>=2.6.0->netmiko) (1.14.5)
  Requirement already satisfied: six>=1.4.1 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from bcrypt>=3.1.3->paramiko>=2.6.0->netmiko) (1.15.0)
  Requirement already satisfied: pycparser in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from cffi>=1.1->bcrypt>=3.1.3->paramiko>=2.6.0->netmiko) (2.20)
  Requirement already satisfied: textfsm<2.0.0,>=1.1.0 in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from ntc-templates->netmiko) (1.1.0)
  Requirement already satisfied: future in /Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages (from textfsm<2.0.0,>=1.1.0->ntc-templates->netmiko) (0.18.2)
  WiliseXdeMacBook-Pro:~ apple$ 
  
  

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