: The year of birth and death is unknown, formerly known as Cao Cao, and the word Du was changed to avoid taboo with Cao Cao. Ling Du people were born in Jingzhao in the later Han Dynasty. When Johnny was in the same phase. Good at calligraphy and cursive script. In junior high school, the emperor liked his calligraphy very much and let him play with cursive. Later generations therefore called it "Zhang Caoshu". Sometimes there is a title, and some people call it "Cao Sheng". Wei Heng's Four-body Calligraphy said: "When Zhang Di was in power, the cursive script was good, the calligraphy was very safe, but the words were slightly sparse." Huai Su's autobiographical post said: "The work of husband's manuscript began in the Han Dynasty, and Du Du and Cui Yuan began in anecdotes."
Cao Zhang's calligraphy
The Eastern Han Dynasty inherited the Western Han Dynasty. Although the political and economic development has not surpassed the former, the development of culture and art has its uniqueness and made great achievements.
In the Eastern Han Dynasty, a new style of writing appeared, called "Zhang Caoshu". This font evolved from official script and regular script, which combines the advantages and disadvantages of these two fonts and forms its own unique internal quality. Its remarkable feature is that words are not connected with each other, and some words have ripples of official script at the end, which are circuitous, clear and harmonious, and are loved by people at that time, so they are widely spread.
At that time, there was a calligrapher named Du Du, who was very calculating and courageous. He and Cao Zhang wrote an "emergency chapter" and submitted it to the court. This kind of "doing whatever you want" won the appreciation of Emperor Gaozu Zhang. Zhang Han liked Du Du's calligraphy attainments very much, so he rewarded him. Later, I felt that it was not enough and ordered all ministers to use this new book style when they arrived at the chapter. This practice of popularization has enabled the generals in the border areas and the ministers in the DPRK to take Cao Zhang as the guide in case of emergency, and objectively achieved a simple, quick and urgent effect. At that time, the popularity of cursive script was sought after by the ruling and opposition parties and was very popular. Even Emperor Zhang of the Han Dynasty began to study calligraphy with great concentration. At that time, a calligrapher named also wrote "urgent chapter", which was also appreciated by Emperor Gaozu Zhang, showing that cursive script was flourishing at that time.