Cao Zhang, one of the traditional calligraphy styles, is an early cursive script, which began in the Qin and Han Dynasties and evolved from a cursive official script to a standard cursive script. Cao Zhang is the predecessor of Today's Grass, which was produced at the end of the Eastern Han Dynasty and was changed by Cao Zhang. As Li Zhimin said: "Close to the pool, consider the reason, get the heart from things, realize the image, and then enter the beauty of cursive script." The main difference from Modern Grass is that it retains the brushwork of official script, and the upper and lower characters are independent and basically unconnected.
Cao Zhang is a calligraphy style that evolved from official script to cursive script. It belongs to a link in the process from the embryonic stage to the standardization of cursive script.
There are several theories about the origin of the name Cao Zhang, each with its own basis and reasons.
First, you Shi wrote the cursive script "urgent chapter" (real name "urgent chapter"), and later omitted the word "urgent chapter" and called it "chapter".
Secondly, Emperor Wu of the Han Dynasty Zhang liked this writing and ordered others to use it, hence the name. For example, Tang Wei continued to write Fifty-six Books: "Zhang Caoshu, written by Han Qi Du Bo, is famous all over the world because of Zhang Di's love."
Third, this writing style is named after the above chapters.
Fourth, taking the meaning of "articles of association" refers to the standardization, regularization and stylization of its grass law.