Ji hai's miscellaneous poems, the fifth is. What? Literary form/style/genre

Seven-character quatrains. The fifth poem Ji Hai Za Shi written by Gong Zizhen, a poet in Qing Dynasty, is a seven-character quatrain, which expresses the author's melancholy feeling of leaving Beijing for the south and reveals profound and rich thoughts and feelings of loyalty to the king and serving the country. Seven-character quatrains are a genre of China's traditional poetry, which belongs to the category of modern poetry. They are composed of four sentences, each sentence has seven words, and there are strict metrical requirements in rhyme and adhesion.