What are the contents and styles of Jian 'an poems and Zhengshi poems?

The difference is that Jian 'an literature has a greater influence on later generations, because the poetry and fu at that time determined the pattern of five-character poems in later generations, and also tried to create seven-character poems. There are also great differences in writers' thoughts between Jian 'an literature period and Zhengshi literature period. Scholars in Jian 'an period felt more secure than those in Zhengshi period. Cao Cao was very supportive of literature and made friends with scholars everywhere, while Sima's regime's main purpose was to exclude dissidents, which made the moral thought at that time hollow. Therefore, in order to keep the spirit of breaking away from the nihilistic thoughts left over from the Jian 'an period, the literati have a deeper sense of character. Jian 'an period is, after all, a period of social recovery. Although there are hardships, it is still full of hope. At the beginning, it was in a state of dire straits and uncertainty.

The Zheng Shi period and the post-Zheng Shi period, which are bounded by the High Ping Ling Incident, are two completely different historical stages. Therefore, Zheng Shi's literature and post-Zheng Shi's literature, which originated from two different social backgrounds, have completely different styles in both ideological content and art. Jian 'an poetry circles set an aesthetic model of "Jian 'an style" for China's poetry, while the voice of Zheng Shi is characterized by obscurity and twists and turns. During the Jian 'an period, a group of poets, represented by "Three Cao" and "Seven Zi", on the one hand studied the Han Yuefu and described social unrest and people's livelihood sufferings; On the one hand, he sang his political thoughts and ambitions and formed a sad, generous and vigorous style, which was later called "Jian 'an Style" or "Jian 'an Style". Zhengshi literature: Zhengshi literature generally refers to the literature in the late Wei Dynasty. The representative writers in this period are Ji Kang and Ruan Ji. In their works, they protested against Sima's brutal rule and exposed the hypocrisy of ethics, which is in line with the "Jian 'an Style". Zhengshi literature represented by Yanhe, although its achievements are not comparable to Jian 'an literature represented by San Cao and Qi Zi, nor to post-Zhengshi literature represented by Ruan Ji and Ji Kang, left its own mark in the history of literature and had an impact on the literary world of Jin Dynasty.