"A Dream of Red Mansions" by Cheng Yi is one of the Cheng A and Cheng Yi versions of "A Dream of Red Mansions" compiled by Cheng Weiyuan and Gao E and printed with wood movable type. The difference is:
-The difference in time. The "Cheng Jia version" was completed in the fifty-sixth year of Qianlong's reign; the "Cheng Yi version" was completed in the fifty-seventh year of Qianlong's reign, which is about 70 days after the "Cheng Jia version" was completed.
-The content is different. The official statement is that "Cheng Yi version" is a revised version of "Cheng A version", which is the "finalized" version that compiles and revised the previously published content. It is generally believed that the "Cheng A version" is closer to the original work, but there are some contradictions in the context. The "Cheng Yi version" has slightly larger changes, but the reading is smoother and the logic is self-consistent.