What does Du Fu's Car Shop mainly write that reflects the author's thoughts and feelings?

A Qing Dynasty Qian said, "Ten years after Tianbao, it was quite new that China won Nanzhao, and 60,000 soldiers died. Yang concealed his failure, but reported the news, and transferred troops from Beijing, Henan and North to attack Nanzhao. People heard that Yunnan was troubled and there was no war, and the foot soldiers died in 189, so they had to recruit Moken. Yang suggested separating people and sending flail to the army. Monkey was annoyed, and his parents and wife gave it to him, crying his eyes out. " (Zhu Qian Du Fu's Poems, Volume 1). In Chedian, Du Fu described the tragic situation at that time with his personal experience, revealed the heavy suffering brought to the people by years of campaigns, exposed and accused the militaristic crimes of the rulers, and expressed his uncontrollable grief and deep sympathy for the working people. The phrase "and the heart of Emperor Jude is beating for the war" sharply points the finger at the supreme ruler at that time and his policy of opening up Xinjiang, showing the author's strong sense of justice and humanitarian spirit. From the perspective of creative methods, Du Fu's greatest achievement and characteristic is realism. Du Fu has his unique and rich life experience. Most of his poems are based on people's life and closely combined with social reality. In order to truly and vividly reflect real life, he needs to adopt realistic expression techniques. The poem "Car Shop" played an important role in Du Fu's life. He is the first clarion call for poets to attack the ruling clique, the beginning of creating new Yuefu poems, and the beginning of poems reflecting major political events. Car Shop marks the new beginning of Du Fu's realistic creation. Realism advocates observing life objectively, describing reality accurately and delicately according to the original features of life, and truly reproducing typical characters in typical environments. As the beginning of Du Fu's realistic creation, Chedian is characterized by its high typicality. Du Fu conceived a talk about pedestrians in the form of questions and answers, which reflected that in the broad background from "Beihe" to "Xiyingtian" and from "200 prefectures in Shandong" to "Qinghai Tou", the recruiters and peasant women were hit by militarism in the front and rear, and the terrible consequences of the vicious circle caused by rising military service and taxes in a limited space. It is the main feature of Du Fu's realism that he is good at selecting people and things with typical significance from real life, summarizing them highly and revealing the essence of real life through individual reflection. The basic structure of "APC" begins with the description of the scene of soldiers going out to bid farewell, with pedestrians answering questions as the main body. The narrative is calm and orderly, but it opens and closes vertically and horizontally, with twists and turns. Poets take care of everything in their writing, such as "whenever a bystander asks you a question" and "no matter what they are asked, do they dare to complain?" "And Emperor Wu's heart is still beating for the war", "Stick to the west of the city", "In thousands of villages, there is nothing but weeds", "How can they pay?" "The side court is bleeding into sea water", "The new ghost is wailing there with the old ghost now", "You can't smell it" and "You can't see it". Make the front and back echo, and the structure is rigorous. In order to make the characters vivid, Du Fu absorbed the creative experience of Han Yuefu, and often personalized the characters' language by dialogue or monologue. "Car Shop" takes the dialogue between "passers-by" and "pedestrians" as the main body of the poem, especially through the answer of "pedestrians", which expresses his uneven voice and is very personalized. In addition to learning Yuefu, Du Fu also learned folk songs and used colloquial expressions. "My Mother-in-law" and "Being driven away is not as good as a dog and a chicken" are not only lively, but also add a sense of realism and intimacy to the poems. Du Fu also absorbed the thimble technique commonly used in folk songs, such as "They run with you, crying, they pull your sleeve, and their sad voice goes up in the clouds", "Passers-by ask passers-by, and you can only tell him that you are leaving" and "How can they pay the tax challenge? ? "Waiting for the succession, let poetry swing endlessly. All these make this poem easy and natural to read. Du Fu is good at capturing expressive details that can show the essence of things and the mental outlook of characters. "No matter what they are asked to do, do they dare to complain? ? "It is such a detail. It not only reveals the painful feelings of pedestrians who dare to be angry and dare not speak, but also exposes the cruel oppression of the feudal ruling class. In addition, with the change of content and tone, the sentence patterns of three, five and seven are mixed, and the rhyme is flat, resulting in cadence. This is one of the reasons why this poem is full of love and words and has strong artistic appeal. Although Du Fu's Car Shop is the author's first poem that criticizes reality, it already has the style of "depression and frustration" that Du Fu has always recognized. The rapid changes of times and environment, poverty and hardship in personal life, profound thoughts and feelings, and calm expression are the main factors that form this style of Du Fu's poems.