1. Rhyme: In Du Gu's poem Spring Night, there are "silver lanterns and candles in the courtyard" and "daffodils on the sea", which shows that the poet deliberately pursues rhyme when choosing words, making the rhythm of the poem more obvious and increasing the beauty of rhyme.
2. Rhythm: Du Gu's Spring Night pays attention to rhythm in the use of language. This rhythm is reflected in rhyme, and it is more through the careful arrangement of vocabulary and sentence structure to form an internal sense of rhythm. For example, "the stars are bright and the wind is soft." The night is too quiet, the wilderness is too quiet. The repeated use of "so" and "too" and the clever use of adjectives in this passage form a strong sense of rhythm, which makes the overall feeling of poetry smoother and more comfortable.