What are the differences between Du Fu's poetic styles in different periods?

The style of Du Fu's poems is changeable, and generally speaking, it is mainly depressed and frustrated.

Depressed and frustrated is a description of Du Fu's writing style in his early years, which comes from his "Into the Carving Table". I mainly express my profound academic ability and skillful writing skills. "Depression and frustration" refers to the deep implication of the article, while frustration refers to the ups and downs of feelings, which are manifested in the ups and downs of tone and syllables, and have the meaning of deep sorrow and anger, and the latent gas turns into waves and ages.

first, the characteristics of the times with deep sorrow and indignation: Du Fu's representative works reflect a kind of tragedy imposed on innocent people by the times, and are shrouded in an atmosphere of sadness. For example, "Climbing the Building" is extremely sad and melancholy.

Second, the latent energy turns inward and the waves grow old: due to the torture of life, the originally vibrant poet becomes depressed. However, he is a man of backbone. When the sadness in his heart comes to his mouth, he often swallows it in one breath, and the emotions in his heart are reciprocating. What he reveals is the ups and downs of latent gas, which gives people a sense of age. Eight Poems of Autumn Prosperity, an outstanding masterpiece, recalls Chang 'an, feeling ups and downs, being hurt and degraded, feeling depressed and sad, which leads to great frustration. Taking the poet's sad mood of wandering life and worrying about Chang 'an as the keynote, each movement expresses the dignified feelings of the keynote from different angles.

Elegance and leisure is another dominant style besides depression and frustration, such as Delighting in Rain on a Spring Night.