Before you start blogging , I found out what I learned before html+css The foundation is not enough , I was looking for an open source front end , Find that they are not what they want , Say in the circle of friends ： Who can help me write a front-end joke , As a result, many friends came to recommend this to me BootStrap Framework , So I will spend two and a half days to learn this .
Go to BootStrap Chinese net （ Not a Chinese website ）
Click the download button 
Choose the second ： Download the source code
After downloading , Will generate a file called on the desktop bootstrap Folder 
All the documents we need are dist In the folder
Create a folder named in the project folder static Folder , Before that, I need to go to setting.py introduce 
And then in static Create a folder css Folder , One js Folder 
open bootstrap>dist>css, find bootstrap.min.css
Copy and paste into pycharm Just created css Folder , By the way, I found bootstrap.min.js and jquery.min.js Import js Folder 
The introduction needs to add this sentence in the header 
stay html Add these two sentences at the end , Be careful ：jquery Need to be compared with js First introduced
At this time, an error will be reported during operation , Why? ？
Because we're not here html introduce static Static files ！！
Pictured ：
The premise of this sentence is that we have static file , And in setting There are configurations in the
