auto save

store.py

-goods = {'可口可乐':3,'旺仔牛奶':4,'农夫山泉':1,'辣条':3,'巴西烤肉':2,'果冻':4,'乐事':5,'奥利奥':10,'巧克力':6}
-goods.pop("农夫山泉")
-print(goods)
-# 请将"农夫山泉"删掉，并打印出新的商品信息
+i=3
+username = "python"
+userpassword = "123456"
+while True:
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