What are the artistic features of the fonts of Zhang Xu, Zhang Zhi and Huai Su?

His regular script is accurate. The rules are extreme, and Huang Gu is called "the first in the Tang Dynasty". If his regular script is more inheritance than creation, then his cursive script is a great innovation and development in calligraphy. Han Yu said, "Xu is good at cursive writing, but he can't cure his book." Change is like ghosts and gods, so don't be arrogant. " Du Fu wrote in Song of the Eight Immortals: "Zhang Xu's three cups of grass are sacred. He waved his paper like a cloud before taking off his hat to reveal the top of the maharaja. " He can sublimate the art of calligraphy to the artistic realm of expressing calligraphers' thoughts and feelings with abstract points and lines. In the art of calligraphy, his handwriting seems strange but not strange. The key is that the pen for stippling completely conforms to the traditional rules. It can be said that he used traditional techniques to express his personality and became a creative calligrapher worthy of his own time in calligraphy. Broad, fresh and unrestrained, far more than the previous calligraphers' works, with a strong flavor of the prosperous Tang Dynasty.

Huai Su: Huai Su cursive script is thin and vigorous, flying naturally, like a whirlwind of showers. Although his calligraphy is capricious and ever-changing, it has statutes. Huai Su and Zhang Xu formed two peaks of calligraphy in the Tang Dynasty, which were also two unattainable peaks in the history of cursive writing in China. Mi Fei's "Haiyue Book Review": "Huai Su is like a strong man wielding a sword, and his spirit is moving, but he advances and retreats in a roundabout way." Many poets in the Tang Dynasty praised it, such as Li Bai's cursive music and Huai Su's master Manji's cursive music.

Zhang Zhi: He was good at Cao Zhang. Later, he got rid of his old habits and preserved Cao Zhang's brushwork, which became a "modern grass". The "Shu Duan" said that he "learned the methods of Cui (Xuan) and Du (Cao), so it was a surprise to change it to this grass. The font is made in one stroke, occasionally interrupted, but the veins are continuous and even connected. " Dan Wei, a calligrapher of the Three Kingdoms, called him "the sage of grass". Jin Wang's book only praised Zhong (Yao) and Zhang (Zhi) for Han and Wei calligraphy, but thought the rest were not satisfactory. It had a profound influence on the cursive scripts of Wang Xizhi and Wang Xianzhi.