Well, first of all, this is a request for leave.


    The reason is that I had no ideas in front of the computer for more than three hours today. Then I messed up the computer and lost the graphics card driver. Then I wanted to reinstall the graphics card driver, but I overestimated my own strength. The system broke down..................


    So I''m now holding my computer to find a place to fix...


    For the sake of the fact that I have never stopped updating for more than 200 days since I opened the book, forgive me..................