After the Tang Dynasty, it became a modern poem, so it is usually divided into five words and seven words. Five-character ancient poems are referred to as five ancient poems for short; Seven-character ancient poems are referred to as seven ancient poems for short, and those who use three, five and seven characters at the same time are generally considered as seven ancient poems.
From the Book of Songs to modern times, ancient poetry has always been a literary genre for literati to express their feelings, and it is also an important part of China's traditional poetry. In addition to rhyme, classical poetry is not restricted by meter, nor does it talk about meter, antithesis and duality, nor does it limit the number of sentences. At the same time, the rhyme foot is broad. Although a poem can be flat and smooth, it can be rhymed, but it must have certain rules.
Extended data
Classification:
1, four-character poem
Poetic style name. Every sentence in the whole article is four words or mainly four sentences. It is the earliest poetic style in China's ancient poetry. Poems before the Spring and Autumn Period, such as The Book of Songs, are mostly four words. After the Han Dynasty, the style changed slightly. Since the Southern Song and Qi Dynasties, there have been fewer and fewer authors.
2. Five-character poems
Poetic style name. A poem composed of five words. From the Han dynasty. After Wei and Jin Dynasties, it developed greatly in Sui and Tang Dynasties and became one of the main forms of classical poetry, including five-character ancient poems, five-character regular poems and five-character quatrains.
3. Six-character poems
Poetic style name. The whole article has six words in each sentence. Legend has it that it began in Gu Yong in the Western Han Dynasty. It is said that Dong Fangshuo has "six-character poems", but none of his poems have been handed down. Kong Rong's six-character poem was the earliest in the late Han Dynasty. There are ancient and secret points. But they are not very popular.
4. Seven-character verse
Poetic style name. Each sentence of the whole article is seven words or mainly seven words, which originated from the folk songs of Han Dynasty. The old theory began with Bailiang Taishi, which may not be credible. Wei's Ge Yanxing is an early pure seven-character poem. In the Tang Dynasty, it had a great development. There are seven-character ancient poems, seven-character regular poems and seven-character quatrains. It is the main form of classical poetry and five-character poetry.
5. Miscellaneous poems
Poetic style name. An ancient poem, originally from Yuefu. There is no certain standard for the sentence length of poetry. The shortest sentence has only one word, long sentences have more than nine or cross, and three, four, five and seven words alternate.
Baidu Encyclopedia-Ancient Poetry