Chinese cuisine, teach you the correct way to make sweet and sour pork tenderloin, sweet and sour

Chinese cuisine, teach you the correct way to make sweet and sour pork tenderloin, sweet and sour, delicious, children love to eat.
Sweet and sour pork tenderloin is one of the classic traditional Chinese dishes, which mainly consists of pork tenderloin and seasonings such as flour, starch, vinegar, and tomato sauce. It is sour, sweet, and delicious, making people crave it; This dish can be found in Hunan cuisine, Shaanxi cuisine, Henan cuisine, Zhejiang cuisine, Shandong cuisine, Sichuan cuisine, Huaiyang Cuisine, Guangdong cuisine and Fujian cuisine.