One of the genres of ancient Chinese poetry. Every sentence in the whole article is seven words or a poem with seven words as the main body. Pre-Qin era
A poem of seven words per line
During this period, Xunzi Xiangcheng Pian was a kind of seven-character rhythmic poem imitating Han folk songs, except for the seven-character rhythmic poems in The Book of Songs and Chu Ci. In the Western Han Dynasty, there were seven popular rhymes, such as Sima Xiangru's Fan Jiang and You's Jiupian, as well as Louhu Song and Shangjun Song contained in Hanshu. There were many seven-character miscellaneous songs in the Eastern Han Dynasty. For example, Mai Yao, Wu Zaicheng (Sima Biao's Five Elements of Han History) and Huan Er Ge (Bao Puzi's Shen Ju) at the end of the Eastern Han Dynasty are all vivid, popular and fluent folk works in seven languages. According to legend, Emperor Wu of the Han Dynasty once called his ministers together and made a seven-character couplet of Bailiangtai. But according to later research, this is an untrue statement and unreliable. Ge Yanxing by Wei is China's first complete seven-character poem of literati. Later, Tang Huixiu and Bao Zhao had seven-character works. Bao Zhao's 18 "Zhun Qi Difficult to Walk" not only greatly expanded the content of the poem, but also changed the rhyme of the original seven-character poem into the rhyme of every other sentence and can be changed, which opened up a new way for the development of the seven-character style. Seven-character poems gradually increased from Liang to Sui, and it was not until the Tang Dynasty that seven-character poems really developed. The appearance of seven-character poems provides a new and bigger form for poetry and enriches the artistic expression of China's classical poems.