Why does Wuhu Ding Dong buy food in the night market?

Due to the adjustment of regional management strategy. Ding Dong wants to collect distribution fees because of the adjustment of regional operation strategy. Judging from the current situation, for Ding Dong who made a fortune in Wuhu, the price increase should be related to his long-term cultivation in Wuhu. According to Ding Dong's theory of buying vegetables, the adjustment of delivery fee is to realize sustainable management.