There is a Chaoyang supermarket (about a few hundred meters away) next to Xuzhou Station. There are many cheap and delicious things in it, convenient, biscuits, spicy strips and things in the supermarket are generally very cheap. If you need heating, there is also a microwave oven, which provides this service for guests free of charge.
Or walk out of the train station to the opposite baiyun hotel. There is an alley on the right, with a snack bar and cheap things.
There is also a traffic light on the left hand side of the railway station, and there is also a McDonald's, where things are not only fresh, but also provide guests with free rest and wifi.