During the Three Kingdoms period, the monarch of Wei, whose temple name was Shi-zu (Wei Shi-zu), was written in posthumous title (). Politicians and writers. Purple Huan Zi. Pei Guoqiao County (now Bozhou, Anhui Province). The second son of Cao Cao. In the sixteenth year of Jian 'an in the Eastern Han Dynasty (2 1 1), he was a corps commander and deputy prime minister with five senses. In twenty-two years, he was made a prince. In the first year of Yankang (220), Cao Cao died of illness and was succeeded by Prime Minister and Wang Wei. In October of that year, he forced Emperor Han Xian to meditate and stand on his own feet as emperor. Wei, the country name was changed, and the capital was moved from Xuchang to Luoyang. Cao Pi insisted on monopolizing power and establishing a Chinese book province, and its officials were replaced by scholars. Originally, the responsibility of drafting imperial edicts was transferred to the officials of Zhongshu Province, and the right of confidentiality was gradually transferred to Zhongshu Province. It is stipulated that women are not allowed to pre-govern, ministers are not allowed to play the role of empress dowager, and descendants and families are not allowed to serve as auxiliary governments. He also established and promoted the "nine-grade justice" system, trying to take back the use of human rights from the celebrities of big families. Through this series of measures, Wei's rule was further consolidated. He personally led the army to attack Wu three times, but all failed. Cao Pi loves literature and has made great achievements. Write down China's early excellent seven-character poems as follows. His Dian Lun Wen occupies an important position in the history of China's literary criticism.