Briefly describe the artistic features of Du Fu's seven-character masterpiece "Ascend the High".
This is the most famous seven-rhyme poem in Du Fu's poems. The artistic features of "Deng Gao" are:
1. All eight lines of this poem are correct. It is concentrated, vertical and horizontal, and full of changes. It blends deep emotions with precise rhythm.
2. The scene is spectacular, the momentum is flying, and it is sad but not depressed.
3. The style is majestic, tragic, and impassioned. This poem is the most famous seven-character rhyme poem among Du's poems, and has been rated as the best seven-character rhyme poem in ancient and modern times by later generations.