Lu Xun described in "Kong Yiji" the four ways of writing the word "fennel" when Kong Yiji ate fennel beans. Therefore, it was widely circulated among the people.

An excerpt from Mr. Lu Xun's famous novel "Kong Yiji": "The layout of hotels in Lu Town is different from other places: there is a large square-shaped counter on the street, with hot water prepared in the cabinet. Warm wine at any time. Workers who took off work in the afternoon and evening often spent four copper coins to buy a bowl of wine. This happened more than 20 years ago, and now each bowl costs up to ten coins. , ------Stand by the counter, drink something hot and take a rest; if you are willing to spend an extra penny, you can buy a plate of salted bamboo shoots or fennel beans to drink with. If you go out for more than ten Wen, you can buy some meat dishes, but most of these customers are short-sleeved, and they are probably not so wealthy. Only those wearing long gowns walked into the house next to the store, asked for wine and food, and sat down to drink... ...."