Du Fu is a poet who cares about national security and people's sufferings. In turbulent times, whenever he feels personal frustration, he is full of sadness. His poems are full of deep worries, whether it is sketching people's sufferings, missing friends or writing about his own poverty, his feelings are profound and broad. His poems contain a kind of accumulated emotional strength. Every time he wants generate, his benevolent feelings are full of affection. He suppressed the outbreak of this grief, making it slow, deep and deep. Personal grief has become a deep concern for people's suffering, leaving endless charm. Melancholy is the main style of Du Fu's poems. Depression is emotional sadness. Drug withdrawal is the ups and downs of emotional expression and repeated low returns.