The method of hook crossbow: the vertical hook is long, straight and not bent, short and not straight, and weak when bent.
Hook method: if you want to bend, you should pay attention to folding the pen to the left. Where is the curvature and the center of gravity is the most suitable.
These two methods come from Huang Ziyuan's Ninety-two Laws on Frame Structure of Regular Script.
Extended data
The Ninety-two Methods of Structure Summary, also known as the Ninety-two Methods of Regular Script Structure, was written by Ying Shao, a master of regular script in the late Qing Dynasty, and copied in Huang Zi in the tenth year of Yuan Guangxu. After the founding of New China, Hunan Fine Arts Publishing House reprinted Huang Ziyuan's Ninety-two Laws on Frame Structure of Regular Script. Since the Yuan Dynasty, he began to learn from Yan Zhenqing, and then from Liu Gongquan, Ou Yangxun and Ying Shao, learning from others and forming his own family style.
On the basis of Ou Yangxun's Thirty-six Methods of Shelving and Ying Shao's works, Huang Ziyuan systematically and comprehensively studied and analyzed the laws of Chinese character structure combination, and summarized 92 writing methods of Chinese character structure, each with typical examples.
His regular script is a collection of European, Yan and Liu Zhichang, which not only has the brushwork structure of European style, but also has the vigorous brushwork of Yan, and also sees the strength of Liu's body and bone, so he is worthy of being a regular script master. The "Ninety-two Methods of Architecture Summary" copied by him is a relatively complete and practical calligraphy post, which has a great influence on later calligraphers. It is not only suitable for beginners to learn, but also suitable for calligraphy lovers to refer to and appreciate.
Baidu Encyclopedia-92 Methods of Shelf Structure Summary