Answer: When Liu Xie talked about "ancient poems" including "Nineteen Ancient Poems" in "Wen Xin Diao Long Ming Poems", he said that "Looking at the structure of prose, it is straight but not wild. , Tactful attachment, sentimental and affectionate, it is also the crown of the five words." Its artistic features are mainly reflected in:

1. Refreshing lyrical art. "Nineteen Ancient Poems" is a model of ancient lyric poetry. It is good at expressing emotions, but it does not speak directly, but twists and turns, wandering repeatedly.

First of all, many poems have clever beginnings, but few start with lyrical reasoning. There are typical events and specific objects used to initiate the rise. Poems that start with an event are often deduced into a story. "The Cold Air Arrives in Mengdong" and "Guests Come from a Far Away" both begin with the heroines receiving items from afar, and then write their letters and gifts to the wanderers. How to cherish it, collect it carefully, or tailor it skillfully. Poems that originate from specific objects form a beautiful artistic realm from these objects. The poets mostly choose landscapes related to the time sequence. The lyrical protagonists encounter spring grass or autumn wind, some look at the bright moon, and some listen to the chirping of insects. These specific objects trigger various thoughts. "Nineteen Ancient Poems" begins with a description of scenes and narratives, and then transitions to lyrical expressions very naturally, in a natural and smooth manner.

Secondly, many poems in "Nineteen Ancient Poems" form a harmonious and harmonious artistic realm with the blending of scenes and the mutual exchange of things and myself. For example, "How Bright the Moon Is" expresses the wanderer's homesickness, and the artistic conception is like a dream, hazy and deep. There are many imaginative words in the poem "There is a Tall Building in the Northwest", which creates a trance and ethereal state.

Thirdly, he is good at expressing the author's inner feelings by capturing life scenes. The delicate psychological activities are expressed through the description of the scene, making the image of the protagonist in the poem more vivid and prominent. For example, in "The Dusk of Clouds", the narration of the environment and dreams, the description of the characters' psychological state and the lyricism are organically integrated.

2. The superb language skills, Zhong Rong called it "thrilling, almost every word is worth a thousand dollars" in "Poetry".

First of all, "Nineteen Ancient Poems" does not contain difficult or obscure words, but uses the most clear and clear language to express the true feelings and principles. Its language is not artificial, simple and natural, but also It is extremely concise and creates new language, thus forming a language style that is profound but superficial.

Secondly, the language of "Nineteen Ancient Poems" is highly generalized and rich in expressive power. There are many famous sayings and aphorisms in the poem, which are concise and vivid, profound in philosophy and rich in poetic flavor, fresh and mellow.

Thirdly, many ancient allusions are used in the poem, but it does not feel obscure or blunt. The clever use of overlapping words and the natural integration of puns also capture the charm of Yuefu folk songs, such as "Green Grass by the River", "Far Far Away Altair", "Guests Come from Afar" and other poems.

In short, "Nineteen Ancient Poems" directly inherits the lyrical tradition of "Poetry" and "Sao" in terms of expression, and absorbs the artistic techniques of Han Yuefu, becoming the climax of Jian'an's five-character lyric poetry creation. The prelude, whose implicit and implicit style had a long-term influence on the lyric poetry of later generations of literati.