1, Zuo Si's eight epic poems are representative works of medieval epic poems. Its artistic characteristics are that one or eight poems are independent and mutually inherited, forming an organic whole, and the form of group poems can accommodate more abundant contents; 2. Inherited the tradition that Jian 'an poets combined lyricism with lyricism and ambition, and called it "ode to history", but in fact it was "ode to the bosom", which was more closely combined; Third, the performance is more diverse, such as metaphor, comparison, comparison and discussion, which further enriches the artistic expression of the theme of chanting history.
2. It originated in the pre-Qin and Han Dynasties, formed in the Wei and Jin Dynasties, and evolved with the development of China's poems and the changes in the literary environment from the Southern Dynasties to the Late Tang Dynasty. The originator of landscape poetry is Xie Lingyun in the Eastern Jin Dynasty. The landscape poetry initiated by Xie Lingyun introduced natural beauty into poetry, making landscape poetry an independent aesthetic object. His creation not only liberated poetry from Hyunri, but also strengthened the artistic skills and expressive force of poetry, which influenced the poetic style of a generation.