product=[["电视机",2999],["洗衣机",4999],["空调",1999]]
for item in product:
print("商品:{},价格:{}".format(item[0],item[1]))
del product[1]
product.append(["冰箱",5999])
print("修改后商品列表",product)
cHJvZHVjdD1bWyLnlLXop4bmnLoiLDI5OTldLFsi5rSX6KGj5py6Iiw0OTk5XSxbIuepuuiwgyIsMTk5OV1dCmZvciBpdGVtIGluIHByb2R1Y3Q6CglwcmludCgi5ZWG5ZOBOnt9LOS7t+agvDp7fSIuZm9ybWF0KGl0ZW1bMF0saXRlbVsxXSkpCmRlbCBwcm9kdWN0WzFdCnByb2R1Y3QuYXBwZW5kKFsi5Yaw566xIiw1OTk5XSkKcHJpbnQoIuS/ruaUueWQjuWVhuWTgeWIl+ihqCIscHJvZHVjdCk=
商品:电视机,价格:2999
商品:洗衣机,价格:4999
商品:空调,价格:1999
修改后商品列表 [['电视机', 2999], ['空调', 1999], ['冰箱', 5999]]