1. Time background: Both poems happened in the Spring Festival Evening, suggesting that spring is coming and summer is coming. They expressed their feelings and thoughts about seasonal changes and the passage of time.
2. Lyricism: Both poems express their thoughts and sighs about the passage of time and the short life through the description of spring scenery. They convey the author's appreciation of the beautiful scenery in spring and cherish time, and express his praise for life and nature.
3. Fresh and graceful: both poems use graceful and gentle language and artistic rhetoric. With short and pithy space, they captured the beauty of the spring moment, making people think and sing.