China's calligraphy is customarily divided into four types: Zheng, Cao, Li and Zhuan. Zhengshu refers not only to regular script, but also to Wei Bei. Cursive script refers to the wild grass represented by Zhang Xu and Huai Su, and also refers to the big grass. It also refers to a cursive script that is more standardized than wild grass, called grass, represented by Sun's Book Score in the Tang Dynasty. In addition, there is an urgent official script called Cao Zhang. Between grass and grass is a running script. Lishu came into being in the late Qin Dynasty and early Han Dynasty. At first, it was mainly used to copy official documents in order to be concise, and later it was also used to write inscriptions and cliff carvings. Seal script is the general name of Oracle Bone Inscriptions, Zhong Ding, Shigu and Xiao Zhuan.
Regular script is also called regular script, real script and official script. It gradually evolved from official script, becoming more simplified and more horizontal and vertical. Ci Hai explained that it was "square and straight, which can be used as a model". This Chinese character font is the commonly used handwritten orthographic Chinese character. Running script is developed and originated on the basis of official script, which produces a font between regular script and cursive script to make up for the slow writing speed of regular script and the fuzziness of cursive script. "Go" means "go", so it is not as scribbled as cursive script, nor as straight as regular script. Whether it is cursive or cursive in essence. Those with more patterns than grass patterns are called "running patterns", and those with more grass patterns are called "running grass".