Modern poetry is not limited to words, and can be divided into narrative poems, lyric poems, metrical poems, free poems and prose poems.
There are many kinds of ancient poems, such as poems, songs and poems. Seven sections are limited to 28 words, with 7 words in each sentence; Five verses are limited to 20 words, and each sentence has 5 words; Seven laws limit 56 words, 7 words per sentence, 40 words per sentence and 5 words per sentence; Lyrics are defined according to different selfies; There is no limit to the task; Song styles are not limited ... there are also small arrangement rules and many names.
The date is usually recorded after the title, before the content of the poem, and sometimes in the inscription.