Cursive script is a writing form of Chinese characters. Formed in the Han Dynasty, it evolved on the basis of official script for the convenience of writing. There are Cao Zhang, Cao Jin and Crazy Grass. There are rules to follow in the changes of strokes, such as the urgent chapter of the Three Kingdoms Wu in Songjiang Edition. Today's grass is eclectic and fluent, and its representative works include Wang Xizhi's "The First Moon" and Jin Dynasty's "Getting Time". Mad grass appeared in the Tang Dynasty, represented by Zhang Xu and Huai Su, and its brushwork was wild and uninhibited, which became an artistic creation completely divorced from practicality. Since then, cursive script has only been copied by calligraphers from Cao Zhang, Cao Jin and Kuangcao. Masterpieces such as Zhang Xu's Abdominal Pain Post and Huai Su's Autobiography Post. Cursive script is a font for writing convenience. It began in the early Han Dynasty. At that time, it was "Cao Li", that is, scribbled official script, which gradually developed into a kind of "Cao Zhang" with artistic value. At the end of the Han Dynasty, Zhang Zhi changed "Cao Zhang" to "modern grass", and the character style was formed in one fell swoop. In the Tang Dynasty, Zhang Xu and Huai Su developed into "weeds", with continuous strokes and changeable glyphs.

Caoti is characterized by simple structure and continuous strokes. Cao Zhang originated in the Western Han Dynasty and flourished in the Eastern Han Dynasty. The font is in the form of official script, and the characters are different and correct each other. This grass originated in the late Eastern Han Dynasty, with diverse styles and beautiful brushwork. The sum of the present and the present is longer than this grass, and the present and the rest are longer than this grass. Wild Grass, also known as Big Grass, has bold brushwork and continuous posture, such as Zhang Xu's Thousand Pieces of Broken Monuments and Four Ancient Poems in the Tang Dynasty, and Notes on the Autobiography of Monks in Huai Su. Sun's brushwork is lively and charming. "Big grass" and "small grass" are symmetrical. Big grass is pure grass-based and difficult to identify. Zhang Xu and Huai Su are good at it, and their words are written in one stroke, sometimes out of line, but the context is constant. In Qing Dynasty, Feng Ban gave a lecture on cursive script in "Blunt Printing Book": learn from it, learn from it, learn from it, and learn from Zhang Xu as weeds, so it is better to learn from Huai Su. Huai Su's cursive script is easy to recognize, the handwriting is fine, and the relationship between words is clear and easy to put pen to paper. Zhang Xu's glyphs vary widely, often a number, and the momentum between them is constant, which is difficult to identify and forms a unique style. As mentioned in Han Yu's Preface to Giving People a Noble Mind, Zhang Xu's cursive script is "angry and embarrassed, sad and sorrowful, resentful and resentful, yearning, drunk and annoyed, unfair and moving in the heart, which is bound to be reflected in the cursive script", so it is difficult to learn from Zhang.

Li Shu's common brushwork is elegant with a pen, which is called Cao Li, and some are like Cao Zhang, which is related to his usual skill in writing Li Shu, so Cao Li can create a unique style. It is also a way to write performances.

"Breaking grass" is the most common among modern calligraphers. Its characteristic is the combination of strokes and strokes. Most of them have evolved into their own styles since ancient times. Wang Xizhi learned some from his calligraphy style, and Wang Duo took some from his calligraphy posts. Zhu Yunming, Sun and other famous artists learn from each other's strong points, and each has its own features, and they are free to play and unrestrained. This writing is similar to today's grass.

Cursive script is called "cursive script", and there are many ways of writing, that is, running script close to cursive script. The brushwork is relatively smooth. In the Qing Dynasty, Liu Xizai's Outline of Books said that there were "true line" and "careless line" in running scripts. The "true line" is similar to the real book and perpendicular to the truth, while the "grass line" is similar to the cursive script and converges to the grass. Zhang Huaiguan's Lun Shu in the Tang Dynasty said: Those who are true are called "true", and those who take grass are called "walking grass". So, there is this difference.

Zheng Banqiao's good six-and-a-half calligraphy is a font in calligraphy, a "hybrid" with many components. Zheng Banqiao combines seal script, official script and running script in one furnace, with eight points between them, so he calls himself "six-and-a-half-script method". In the Qing Dynasty, Jiang Shiquan praised Zheng Banqiao's calligraphy cloud: Banqiao wrote words like orchid, the waves were elegant and graceful, Banqiao wrote words like orchid, and the leaves were beautiful and beautiful. This means that Zheng Banqiao's official script is divided into six and a half volumes, and the brushwork is completed in the middle.

Song Si's On Calligraphy in the Ming Dynasty put forward the main points of "Twelve Techniques", namely: 1. Treat people sincerely, 2. Writing, 3. Use the wrist, 4. Integrity, 5. Copying, 6. Structure, 7. Fiona Fang, 8 years old. Density, 9. Late speed, 10. Proficient They all adopted the excellent theories of their predecessors and collected them for learners to understand.

The name of the script. Cursive script was formed in Han Dynasty. From Han Dynasty to Tang Dynasty, it can be divided into Cao Zhang, Modern Grass and Wild Grass. For example, Songjiang version of Xiang Jizhang, modern grass such as Wang Xizhi's early moon, Tex in Jin Dynasty, Sun Shupu, weeds such as Zhang Xu's abdominal pain in Tang Dynasty and Huai Su's autobiography are all existing treasures.