China's classical drama theorists learned from Chinese drama creation.

China classical drama theorist Li Yu's principle of dealing with drama structure from Chinese drama creation is also "one person, one thing".

Li Yu (1611-168), whose original name was Xian Lv, whose name was Chen Fan, whose name was Tian Tu, was later renamed Yu, whose name was Li Hong, whose name was Li Weng, whose other names were Jue Shi Gui Guan, Li Daoren, Sui An Master and Li Weng on the Lake. Jinhua Lanxi (now Zhejiang) was born in Luogao, South Zhili (now Rugao, Jiangsu). Writers, dramatists, drama theorists and aestheticians in the late Ming and early Qing dynasties.

known as a gifted scholar, he is called "Li Shilang" in the world. ?

Li Yu has been smart since childhood, and he is good at ancient Chinese words. In the tenth year of Chongzhen in Ming Dynasty (1637), he was admitted to Jinhua Mansion as a government student. After entering the Qing dynasty, I had no intention of being an official, engaged in writing and directing drama performances. In the eighth year of Qing Shunzhi (1651), he moved to Hangzhou. Later, he moved to Jinling (now Nanjing, Jiangsu Province), built a mustard seed garden, opened a book shop, compiled and engraved books, and made friends with dignitaries and literary celebrities.

in the 16th year of Kangxi (1677), he returned to Hangzhou and built a "layered garden" at the foot of Yunju Mountain. Kangxi died in the 19th year (168). ?

Li Yu once set up a theatrical troupe and performed in various places, thus accumulating rich experience in opera creation and performance, establishing a relatively complete theoretical system of drama, and becoming an advocate of leisure culture and a pioneer of cultural industry. He wrote more than five million words in his life.

His opera treatise "Casual Sentiment" discusses the opera literature from six aspects: structure, diction, temperament, object and style, and discusses the opera performance from five aspects: drama selection, tone sandhi, music giving, white teaching and off-set, which greatly enriches and develops China's ancient opera theory.

There are other works such as Ten Songs of Li Weng (including Kite Mistakes), Silent Play (also known as Lian Chengbi), The Twelfth Floor, The Story of Li Weng's Family, etc. In addition, he also reviewed the History of the Three Kingdoms, revised Jin Ping Mei, and advocated the compilation of the Biography of Mustard Seed Garden.