Yu Shinan is Tsinghua people; King Robin is a man in need; Li Shangyin is a grouch. What about cicadas in three poems?

Yu Shinan's cicada is elegant and luxurious, while Robin's cicada is a cry of despair. Poetry is like a person, cicada is like a person, each has its own strengths and complements each other. Li Shangyin's works are awkward and helpless cicadas. This is from the perspective of poetry. These three poems are all famous works in the Tang Dynasty. Due to the different status, circumstances and temperament of the authors, they are also committed to the sustenance of Bixing.