What is the meaning of "Wan Li's clouds and smoke wave calligraphy, and the stars change articles one day"?

It means that the article is well written, and Wan Li's clouds and stars are the embellishment of his article.

"Su Zi Zhan Xue Xia Huang Zhou" written by Fei, a zaju writer in Yuan Dynasty, describes the story that Su Shi was demoted as an assistant envoy of Huang Zhou because he opposed Wang Anshi's political reform, and exposes the darkness of feudal officialdom and the coldness of the world. For example, when writing imperial history, Li Ding impeached Su Shi for "chanting and slandering the imperial court" by taking it out of context and misinterpreting the original text.

For example, when Su Shi lived in Huangzhou, Yang Taishou was cruel to him. When he was sent back to North Korea, Yang came to curry favor with him again. Through Su Shi's experience, the author lashed out at the dark social phenomenon of "no distinction between purity and turbidity, no existence of benevolence and righteousness" and "bullying the poor by relying on the rich and deceiving others by relying on the power".

It is often Hua Duilang who is mixed with Longsi Silk Pavilion. Nine steps emphasize spring scenery and blow two sleeves of incense. Wan Li colorful clouds are shining, and the stars are shining every day. Hanlin romantic, Luo Jing mountains and rivers, Dongting misty rain, Jingu Huaying, how can you fly over your head with soap? The god who sings poetry cries ghosts and cries, and the text is shocked by the end of time.