Flat food generally refers to the fish in Fujian and other places. In the north and most areas in southern Jiangsu and Zhejiang are usually called squats. Most of the southern regions are called different names. Sichuan's handwriting, Hubei's Bao noodles, southern squats, Fujian, Suzhong are called flat food, Guangdong because the word "squat" is relatively rare. The old saying "wonton" (Cantonese) is written in the same tone, and the English "wonton" is derived from Cantonese.