C64 Final remarks!

This book was originally intended to be written for a long time, but after it went on the shelf, it was recommended, with a recommendation of over 1000 yuan. But right now, this book doesn't even earn 100 yuan, plus the website gave us a salary, that's why my book said it lost a lot of money to the website.

The online literary world is cruel, and I'm a person who repays favors