Please compare and appreciate the similarities and differences between Li Bai's "It's Hard to Go to the Sky" and Chen Ziang's "Youzhou Tower" ~ ~ Thank you ~

Similarities: Li Bai's Difficult Walk and Chen Ziang's On the Tower of Youzhou are ancient poems with different words, both of which are free from the shackles of form; The style of poetry is generous, sad and magnificent; Both poems express the author's indignation and frustration that his ambition is hard to pay and his life is difficult.

Difference: Shi Li is free and easy, Chen Shi is depressed; Li's poems mainly use allusions and metaphors, while Chen's poems mainly use scenery to express feelings; Li's poems pay attention to personal joys and sorrows, focusing on expressing inner anguish, while Chen's poems jump out of personal limitations and contain human philosophical understanding of time and space.