python入门jupyter基础操作及文本用法

1.jupyter简介

Jupyter Notebook是一个开源的Web应用程序，允许用户创建和共享包含代码、方程式、可视化和文本的文档。

它的用途包括：数据清理和转换、数值模拟、统计建模、数据可视化、机器学习等等

2.jupyter基础操作

2.1windows更新pip库

python -m pip install --upgrade pip -i https://pypi.douban.com/simple

C:\Users\篮球>python -m pip install --upgrade pip -i https://pypi.douban.com/simple
Looking in indexes: https://pypi.douban.com/simple
Collecting pip
  Downloading https://pypi.doubanio.com/packages/ca/31/b88ef447d595963c01060998cb329251648acf4a067721b0452c45527eb8/pip-21.2.4-py3-none-any.whl (1.6 MB)
     |████████████████████████████████| 1.6 MB 1.1 MB/s
Installing collected packages: pip
  Attempting uninstall: pip
    Found existing installation: pip 20.1.1
    Uninstalling pip-20.1.1:
      Successfully uninstalled pip-20.1.1
Successfully installed pip-21.2.4

2.2jupyter安装

#安装jupyter
pip install jupyter
#有错误提升的话，则需要安装依赖包,No module named 'x'  x显示什么就安装什么依赖包
pip install maturin
#安装插件，提高效率
pip install jupyter_contrib_nbextensions
#更新jupyter        
pip install --upgrade jupyter

2.3初次启动jupyter

#按windows键+r 输入:jupyter-notebook
#google浏览器  输入：127.0.0.1:8888 或者 localhost:8888

看到这个页面则成功！

2.4设置密码进入jupyter

C:\>CD jupyter
C:\jupyter>    
#windows命令创建文件
C:\jupyter>jupyter notebook --generate-config                 #生成文件
C:\jupyter>jupyter notebook password                          #设置密码
x x x x

#或者查看token输入登录
C:\jupyter>jupyter notebook list    

#再次运行jupyter

E:\>jupyter notebook
[W 21:12:13.097 NotebookApp] Terminals not available (error was No module named 'winpty.cywinpty')
[I 21:12:13.099 NotebookApp] Serving notebooks from local directory: E:\
[I 21:12:13.099 NotebookApp] Jupyter Notebook 6.4.3 is running at:
[I 21:12:13.102 NotebookApp] http://localhost:8888/
[I 21:12:13.102 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).

看到此页面则成功！！！

3.创建一个jupyter文本

4.jupyter文本的用法

4.1保存和下载文本

4.2运行和切换代码

4.3多个代码运行

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