What are the characteristics of calligraphy that do not belong to Zhang Xu?

Does the title ask "What are the characteristics of Zhang Xu's calligraphy"? Solitary wave oscillation. Zhang Xu was a calligrapher in Tang Dynasty, good at cursive writing and fond of drinking. He is called Zhang Dian in the world. Zhang Xuzhi's calligraphy deserves to be called "calligrapher", which others can't do. His books are independent because of Zhang Zhi and Xi Xi. His books are characterized by "solitude", "Yin Yinni" and "missing marks", that is, turning and turning brushwork are used in the structure.