This is called "Graceful Song", such as "My hometown is far away, when will I go?" I live in Wumen and have been traveling in Chang 'an for a long time. Do the fishermen in May remember each other? Boat, Dream into Furong Pu "(Zhou Bangyan's Su Mu Zhe) is to miss the author's expression of his homesickness through Yu Lang.
The so-called "irony" is also called "inverted sentence", "irony" and "irony", commonly known as "irony". It uses words contrary to its original intention to express this meaning, but it contains negation, irony and ridicule. It is a rhetorical method with strong emotional color.
So it is essentially different.