（1） install Python Interpreter
Python Official website ：https://www.python.org/
Download the corresponding machine （Windows/Mac） Installation package ：
Baidu online address ：
Extraction code ：yhhp
Double click download okay Python Installation package ：
PS： If not checked Add Python 3.7 to PATH, need
Manually configure environment variables：
（ If you check Add Python 3.7 to PATH You can ignore the step of manually configuring environment variables ）
Computer -> attribute -> Advanced system setup
environment variable -> System variables ->Path：
take python.exe The path and pip The path of the command is configured to Path in ：
Manually configure the environment variables .
win + ropen cmd Command line , Input python, Verify that the configuration is successful ：
PyCharm It's a pretty good Python IDE. It is divided into Community Edition and professional edition , But the professional version is paid software .
Official download address ：https://www.jetbrains.com/pycharm/download/#section=windows
Baidu online address ：
Extraction code ：8q58
PyCharm Related usage and settings ：
Create the first one Python Program ：
Open the installed PyCharm, choice Create New Project：
Create the project as shown in the figure below ：
establish py file ：
function py file （
Shift + F10）：
stay PyCharm Find... In the lower left corner of the center Python Console Click to enter Python Console ：
Console line feed display ：
Code auto alignment shortcuts ：
Ctrl + alt + l
PyCharm How to set up “ctrl+ Roller ” Achieve font zoom in and out
It's set up in two steps ：
PyCharm Font magnification settings ：
File --> setting --> Keymap --> Type in the search box increase —> Increase Font Size（ double-click ） --> Select in the pop-up dialog box Add Mouse Shortcut --> After the pop-up dialog Hold down ctrl Key while the mouse wheel slides up .
Pycharm Font reduction settings ：
File --> setting --> Keymap --> Type in the search box decrease —> Decrease Font Size（ double-click ） --> Select in the pop-up dialog box Add Mouse Shortcut --> After the pop-up dialog Hold down ctrl Key at the same time the mouse wheel down .
The setup is complete , You can try it yourself ！
modify pip Source image ：
Follow up, whether it's using Python Do automated tests 、Web Website development 、 Crawler or data visualization analysis will be used
pip commandDownload third-party libraries , because pip The source image is abroad , So we are install Third party libraries often need to add
-i http:// The address of the domestic imageThe connection will not fail because of the download timeout , Here, the default image of the local computer is directly changed to the domestic address , In this way, you don't need to add the image manually every time you download the third-party library , Reference method ：
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