Zhang Zhibi, Wei He almost all made progress at the same time. The cursive script of the Han Dynasty was originally independent and incoherent, which is what later generations called Cao Zhang. Ancient people thought that Zhang Zhi created today's cursive script, but some scholars in modern times expressed doubts about it. However, according to many records, Zhang Zhi not only has enough conditions to create this grass, but also wrote a cursive script different from the classical cursive script. Cao Zhang is independent and suitable for writing on bamboo slips. Nowadays, cursive scripts are continuous. After writing a word, it is difficult to stretch the pen on the bamboo slips, so Zhang Zhi wants to talk about "cursive writing in a hurry". Writing this cursive script requires deliberate management, but if you are forced, you will be busy arranging and pretending that this cursive script says "it is difficult but it is too late." When Zhang Zhi practiced cursive writing, he wrote the clothes and silks at home before washing and dyeing them. He also liked to write with pigments and paper. During the Southern Dynasties and the Song Dynasty, Yu Hu recorded in the book list: "The (royal) secret collection contains 4,825 words of Zhang Zhi's calligraphy and paper books, which are very old and mostly simple posts." This is the only remaining Zhang Zhi ink after more than 200 years of war and turmoil. Clothes, silk, silk and paper just occupy their big space. Zhang Zhi's cursive writing style is "a stroke, a stroke, a connection of qi and veins, and a constant alternation, which is called a book." Clothes, silk, silk and paper can absorb ink better than bamboo slips and wooden slips, and it is difficult for traditional small pens to write continuous cursive scripts. Therefore, Zhang Zhi improved the writing brush to make it suitable for writing new cursive script. There are many disciples of Zhang Zhi, and many people in Xizhou learn to write cursive script, which is described in detail in Zhao Yi's Non-cursive script. Today's cursive script is not practical, it is an artistic style. Good at cursive script, Du Cao, Cui Yuan and others have little influence. However, after Zhang Zhi, cursive script became all the rage, forming a genre, which would not have caused a sensation if it were not for the emergence of a new style of calligraphy. Among the bricks of Cao Shi family tomb in Bo County, Anhui Province, there are some bricks, such as bricks for gratitude, bricks for keeping warm and moist, etc. , written in Jianning for three years (170), was a world-famous Zhang Zhi cursive script, with free and easy characters and wild posture, which has the characteristics of today's cursive script. Zhang Zhi's theory of creating modern cursive script should be established, and the progress of pen, paper and ink has made the emergence of modern cursive script have material conditions.
In the Book of Qi Yao Min, Jia Sixie of the Northern Wei Dynasty once recorded the ink-making method of Dan Wei, a calligrapher of the Wei Dynasty in the Three Kingdoms: "Take real pearls and musk and pound them under an iron mortar, and they will stand for 30,000 pestles." The ink made in Dan Wei is called "Dan Wei ink", which is a precious ink in ancient times and is known as; "A hundred years is like a stone, and a little bit is like paint."