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)
+for i in goods:
+    print(i)
 # 请将"农夫山泉"删掉，并打印出新的商品信息
-goods.pop('巴西烤肉')
-print(goods)
-goods.clear()
-print(goods)
-del goods
-print(goods)
\ No newline at end of file
+# goods.pop('巴西烤肉')
+# print(goods)
+# goods.clear()
+# print(goods)
+# del goods
+# print(goods)
\ No newline at end of file