The above is a short answer.
Other knowledge:
There are nine palaces in this world. Nine palaces, each word is one side, the outside world is extremely fat, and the word "well" is used to evenly distribute its stippling. No matter whether the word is dense or oblique, there must be a spiritual knot, which is the palace of words. But in the palace, there are real paintings and empty white, which must be noted by the spirit of judging their words and placed in Huguenot Palace; Then, the prefix, hands and feet are distributed in the eighth house next to it. For example, j, with its length equal to the left and right under the soil. When every three lines are combined, nine characters are the Big Nine Palace, and one of them is the Middle Palace. The upper and lower characters must be unified, and they all tend to bow their heads. Move the word, the size of the two houses will be complete, then the pitch will be reflected, and the fun will come out. Jiugong theory began in Song Dynasty. Gai uses size to calculate words, which is specially used to move and shrink ancient posts. I don't know how to organize in this world. So since the Song Dynasty, no calligrapher has been able to combine the nine palaces into one. The inscriptions on the real books in the Jin Dynasty are not handed down from generation to generation, but I learned the methods of Erjiu Palace by carefully understanding hundreds of inscriptions in the Northern Wei Dynasty and Nanliang. There are no inscriptions of Zhou Dynasty, Thailand, Han Dynasty and Wei and Jin Dynasties in the world. As we all know, Zhong and Wang specialize in this problem. How clean the world posts, Huang Ting, Farzam Kama Labadi, Luo Shen, etc. There is no horizontal grid, but each word has a strange layout, which is actually the whole story and becomes a great nine palaces. For example, three generations of Zhong Ding's plays, such as Lanting, Yurun, Riding on White, Pursuing, Violating Far, Xing Wu and Going Out, have changed a lot, but they are not bad. When I arrived in Tang xian, my ability was not as good as that of the ancients, and the inscriptions in the running script were no problem. Xu Huiji, Li Beihai and Zhang Langzhong are particularly close to the study of Jiugong, and the books have been handed down from generation to generation, and they are believed to be true.