During the prosperous Tang Dynasty, the economy and politics were very prosperous, the poet's style of writing was open, and there were few sad words, even if there were, it was very atmospheric. Poets: Li Bai and Zhang.
Mid-Tang+Late Tang: During these two periods, the Tang Dynasty turned from prosperity to decline. Just after the prosperity of Kaiyuan, people's livelihood and poetic style are depressed, or they reflect their sufferings, or miss the past and hurt the present. Reference poets: Wei Zhuang, Du Fu and Bai Juyi.
Song:
During the Northern Song Dynasty, the economy was relatively developed, but there were many foreign enemies, and countries such as Liao, Jin and Xixia invaded continuously. Therefore, there are two styles of poetry, one is to praise the prosperous life of the city at that time, and the other is to express the feelings of defending the country. Reference poets: Su Shi and Fan Zhongyan.
During the Southern Song Dynasty, the rulers were in a peaceful corner, and their poetic style was more charming, but they generally chose another poetic style in the examination: high aspirations are hard to pay. Because the rulers of the Southern Song Dynasty did not make progress, many poets' desire to recover lost land could not be realized, and they could only rely on their own poems, referring to the poets Lu You and Xin Qiji.
Yuan:
In Yuan Dynasty, the literati's status was low, and their poems were either satirical or passive. In short, it is not successful.
Ming and Qing dynasties:
I have to read this by myself and try to read between the lines, because the poems in Ming and Qing dynasties are underdeveloped and there are fewer poems tested.
Poets in yat sen villa either miss the past and hurt the present, or strive for self-improvement.
It's hard to sum up in one sentence, and if you are satisfied, give 0.0 points.