Zhao Hu was a famous calligrapher in the Three Kingdoms period, so was Zhong You. In calligraphy, Zhong You and Zhao Hu both studied under Liu Desheng. Liu Desheng, a native of Yingchuan, was a famous calligrapher in the Eastern Han Dynasty. The founder of Yan Shu's calligraphy, because he created a "running script" font between regular script and cursive script, was called "the originator of running script" by later generations. Although Desheng's calligraphy is a new creation, its handwriting is beautiful, graceful and graceful, so simple, the strokes are concise, the circle is hidden in the square, the calligraphy is dense, and it is very smart. It was listed as a "wonderful flower" by later generations and was unique at that time. During the Three Kingdoms period, Zhong You and Zhao Hu of Wei were famous for learning Desheng calligraphy. The two men studied the characteristics of Desheng calligraphy art and reached a higher level.