Wang Xizhi's contribution to the art of calligraphy is almost well known, and no one has criticized it since the Song Dynasty. But Wang Xizhi was called a "book saint" by later generations, not only because of his calligraphy art, but also because of his contribution to writing. China's calligraphy, from half painting and half characters in the early pictographic period to Da Zhuan, Xiao Zhuan and Li Shu, has experienced a qualitative change from font to glyph every time. The orthodox books produced in Wei and Jin Dynasties are also a qualitative change. Regular books are flat, writing appraisal is the cheapest, and writing speed is greatly accelerated. Such as official script and seal script, can't write too fast, cursive script can write very fast, but it's not easy to recognize. The appearance of formal books is attributed to many people. When I arrived in Zhong You, I summarized the methods of previous formal books, and then I developed and became the ancestor of formal books. But Wang Xizhi's foundation in Zhong You has been further developed. In particular, his two posts, Le Yi Lun and Huang Ting Jing, are more even and square than Zhong You's calligraphy. Zhong You's calligraphy still retains a heavy proper limit. Wang Xizhi's calligraphy has been removed, and the strokes are more direct, straight and neat. It is recorded in Lun Shu: "The book cited by the late great-grandfather and the book written by the right army are as old as the clock and Zhang." It shows that before the Right Army, all learners studied under Zhong You and Zhang Chu. Although Zhong was the ancestor of official books, Wang Xizhi "changed from ancient times to form" after learning Zhong, and went further, so Wang Xizhi changed his jurisprudence at that time and later generations. "On Books" records: "Yu was a scholar in the West Chamber, and he was as famous as the right army when he was young. The army on the right is backward and uneven. In Jingzhou and Duxia, there is a book that says:' Children are cheap chickens and love wild herons, and they all learn leisure and learn little. If you have to pay me back, then compare it. ""children don't even learn their own famous calligraphy, but learn Wang Xizhi's books. Moreover, without Wang Xizhi, the literati would still be "I don't know Zhong Zhang yet." It shows that Wang Xizhi replaced Zhong and Zhang, but no one replaced Wang Xizhi. Wang Xizhi perfected the official book, and has been stereotyped since then, unchanged for thousands of years. From the Southern and Northern Dynasties, Sui Dynasty, Tang Dynasty, Five Dynasties, Song Dynasty, Yuan Dynasty, Ming Dynasty and Qing Dynasty, only the style of calligraphy has changed, but the style of calligraphy has not changed. Regular script, written more formally; Running script, written casually. The so-called "calligraphy is king for thousands of years" refers to the style of calligraphy. After Wang Shu, there was no reform-oriented change in calligraphy style, such as seal script, official script and official script. However, seal script must be changed into official script, and official script must be changed into block letters, otherwise the mailroom will be inconvenient. However, Wang Xizhi's calligraphy, such as the cloud of Emperor Taizong, is "perfect", so future generations will not change, which is why Wang Xizhi has always been called "the sage of books". There is also a cloud in the Book of Xuanhe: "The change of word method is extremely embarrassing, but it is still ancient, and the law is not ancient." ..... The so-called model method, this book also. People have done it in the past. "You Yun:" This book began in the Han Dynasty, so at the end of the Western Han Dynasty, it was an official book without official script. If there are historical sites such as the country of ownership, Fengyang and Rujun, you can take an examination. Those who spread to the Three Kingdoms are the ancestors of the official book "He Jieke Watch", which did its best to prepare various laws. Yu Xing in the Eastern Jin Dynasty, a romantic cultural relic, transcends previous lives. For example, Wang Xizhi's works "Le Yi Lun" and "Huang Ting Jing" have been immortal and become treasures of the present and the past. "This passage is very correct, telling the story of becoming a full member from the official. At one time, the calligraphy style was a mixture of officials and officials, such as "Returning to China" and other inscriptions (now invisible). Zhong You was a master, and Wang Xizhi went further. His official books are "treasures of the past and the present", but they remain unchanged, which is Wang Xizhi's greatest contribution to writing and calligraphy. During the Wei, Jin, Southern and Northern Dynasties, calligraphy was highly valued as a writing skill. Calligraphy was originally divided into elegance and vulgarity, and even became one of the standards to measure people's character. The cursive script is divided into Cao Zhang style represented by Du Du and Cui Yuan and modern cursive script represented by Zhang Zhi. The famous cursive script writer in Wu Dong, represented by the emperor, showed the trend of transition from Cao Zhang to today's cursive script during the Three Kingdoms period. The cursive scripts in the Western Jin Dynasty, including Cao Zhang, Cao Jin and Kuangcao, are represented by Wei Guan's Draft, Suo Jing's Zhang Caoshu, Lu Ji's Ping Kun Tie and Loulan's cursive scripts, from which we can see that cursive scripts were popular at that time. By the early Eastern Jin Dynasty, Zhong You's calligraphy was in a strong position. In the middle of the Eastern Jin Dynasty, the emergence of Wang Xizhi, a master of calligraphy, made cursive script develop rapidly. His contribution is the development of the official script, running script and Zhang Zhi's cursive script of the school, and the study of the grass method and its extreme. His brushwork is concise and lively, which promotes the development of brushwork, and the flying of words turns into the agility of the whole composition, showing a new atmosphere of cursive script. Most of Wang Xizhi's near-body grass works are in the style of near-body grass written after he became famous. Among them, works with traces of Cao Zhang, such as cold cut posts with thick strokes, far official posts with horizontal openings, and Yimin posts with independent characters, deserve attention. Now Cao Cao's basic law is inherited from Cao Zhang, and Wang Xizhi's Cao Cao often extends his brushwork beyond single words, a few words at a time. Modeling has also broken through the old method of taking a single word as the modeling unit, and formed a "word group structure" with two or three single words as the modeling unit. This "word group structure" has the dual character of showing the beauty of cursive structure and highlighting the continuity of brushwork. Its appearance indicates that the cursive script in the Eastern Jin Dynasty has entered a new stage of development, and the performance of cursive script has gained more space. This is also Wang Xizhi's contribution to cursive art.