Hello, everyone, this is the debut work of the new novices. I have always wanted to write this type of article, but unfortunately I am too willing but not enough. However, after reading many works by the big guys, I couldn't help but want to write something in my heart, so I came up with this article. After all, I am a novice, so I don't know how to start with how to start with the guide mm, so I put the timeline behind the start of the guide mm. Unfortunately, I still used too much space to make the guide mm, so I still prefer to write meat articles directly.