"I'm going to the library" to grab the seat assistant, and automatically grab the seat with python.

When using the official WeChat account of "I Go to the Library" to grab a seat, we will go to a page before grabbing a seat, select the seat to be selected, and click Grab a seat.

By analyzing the source code of the web page, it is easy to locate the code of the seat element. The template of the seat element is as follows:

In the process of coding, I have observed the process of grabbing seats many times and found that the query string in front of the seat number is an irregular code.

Parsing this query is done at the back end, but because you want to send a get request on the page, this code must be traceable at the front end. The answer to this code is in the js link at the bottom of the page. You can fix this code by running js code, thus completing the last piece of the puzzle.