Cao Cao, who lived in the late Eastern Han Dynasty, is a representative figure of Jian 'an literature, and his overall style of poetry is ().

The main points of the exam are an examination of China's knowledge of ancient literature.

Generosity and sadness are the keynote of Jian 'an literature, which is particularly typical and prominent in Cao Cao's poems. This kind of emotion is reflected in his representative works "Good", "Looking at the Sea", "A Journey in Autumn Dew" and the short story "Song Xing".