Cao Sheng refers to the calligrapher who is honored as Cao Sheng.

Refers to the Tang Dynasty calligrapher Zhang Xu. Zhang Xu, a native of Wuxian County, Suzhou (now Suzhou, Jiangsu), was a calli

Cao Sheng refers to the calligrapher who is honored as Cao Sheng.

Refers to the Tang Dynasty calligrapher Zhang Xu. Zhang Xu, a native of Wuxian County, Suzhou (now Suzhou, Jiangsu), was a calligrapher in the Tang Dynasty and was good at cursive writing. In calligraphy, Zhang is good at observing objective things and combining objective natural images with personal subjective feelings. He not only inherits tradition, but also dares to innovate. By inheriting and innovating the calligraphy achievements of predecessors, his own weed art reached a peak in the prosperous Tang Dynasty.

Zhang Xu was born in a family with a high family background. He studied calligraphy under his cousin Lu Yanyuan, and was highly praised by Wu Daozi and Yan Zhenqing after his success. When he was old, he was promoted or recommended, recruited talents, entered the official position, and was released as a captain of Changshu County. He has served as the left governor and the governor, so he is called "Zhang Changshi" by the world; He died in the second year of Gan Yuan (759) at the age of 75.

According to historical records, Zhang Xu enriched the thought of white cloth structure from "contending for Tao", gained the inspiration of speed, weight, richness and thickness of brushwork from "following the wind", and found the compact, powerful, reasonable and ethereal charm of wild grass calligraphy from "sword dance", which made the calligraphy have a qualitative change. Zhang Xu likes drinking, and is known as "Zhang Dian" in the world. He and Huai Su are called "drunk", and he, Zhang and Bao Rong are called "four gentlemen in Wuzhong". His cursive script, Li Bai's poems and songs, and Pei Min's sword dance are also called "three wonders".

With the eyes of a real artist, Zhang Xu searched for symbols corresponding to his emotions and personality in nature and life, integrated the situation of all things in the world with his subjective modality, painted wantonly, and took techniques as the means of spiritual expression, thus turning everything in technology into Tao and everything into his own artistic language, and finally formed the expression form and style of Wild Grass flying wildly.