The inscriptions on bronze in the Yin Dynasty are extremely simple, with one word or one number for each device, many pictographs, even only one figure, and no words at all. The others are neither words nor pictures, so we have to say that they are pictures and texts.

In the early Western Zhou Dynasty, the inscriptions on bronze inscriptions of many clans in the Yin Dynasty still retained the characteristics of elegant writing style, including Zhou Gongyin's sharp and consistent brushwork, some of which were fat and thick, and the inscriptions on bronze inscriptions in the Yin Dynasty were full of vitality and strong brushwork.

The bronze inscriptions in the middle of the Western Zhou Dynasty are small and neat in shape, thin in strokes, generally slender and lacking in change. Among the late Western Zhou bronzes, Mao and other bronze inscriptions are the most famous, which were made in the late Western Zhou Dynasty.

In the early Western Zhou Dynasty, the inscriptions on bronze inscriptions of many clans in the Yin Dynasty still retained the characteristics of elegant writing style, including Zhou Gongyin's sharp and consistent brushwork, some of which were fat and thick, and the inscriptions on bronze inscriptions in the Yin Dynasty were full of vitality and strong brushwork.

The evolution of cursive script:

Early cursive script evolved from official script and was named "Cao Zhang". It is generally believed that it is a simpler style than official script, and it is used to write chapters or articles of association. Cao Zhang changed Li Shu's writing style, which was horizontal, flat and vertical, and his pen was intermittent, and became a font with round rotation, alternating thickness and shape inspection. There is also a wave on the right side of the word, which is different from the current grass because it retains the meaning of Li.

According to legend, Cao Zhang was created by You in Huangmenling during the Han and Yuan Dynasties, and it has been passed down to this day with its "urgent chapter" (book passbook, etc.). ), later generations called it "Cao Zhang" because of its "chapter" (predecessors said "grass" also refers to grass creation). There is also a saying that Zhang, the emperor of the later Han Dynasty, liked cursive script, and told him to use cursive script when playing this chapter.