# your code goes here
product=[["电视",3699],["洗衣机",2699],["冰箱",4399],["空调",2399]]
for item in product:
print("商品:{},价格:{}".format(item[0],item[1]))
del product[1]
product.append(["吹风机",399])
print("修改后的商品列表:",product)
IyB5b3VyIGNvZGUgZ29lcyBoZXJlCnByb2R1Y3Q9W1si55S16KeGIiwzNjk5XSxbIua0l+iho+acuiIsMjY5OV0sWyLlhrDnrrEiLDQzOTldLFsi56m66LCDIiwyMzk5XV0KZm9yIGl0ZW0gaW4gcHJvZHVjdDoKICAgcHJpbnQoIuWVhuWTge+8mnt9LOS7t+agvO+8mnt9Ii5mb3JtYXQoaXRlbVswXSxpdGVtWzFdKSkKZGVsIHByb2R1Y3RbMV0KcHJvZHVjdC5hcHBlbmQoWyLlkLnpo47mnLoiLDM5OV0pCnByaW50KCLkv67mlLnlkI7nmoTllYblk4HliJfooajvvJoiLHByb2R1Y3Qp
商品:电视,价格:3699
商品:洗衣机,价格:2699
商品:冰箱,价格:4399
商品:空调,价格:2399
修改后的商品列表: [['电视', 3699], ['冰箱', 4399], ['空调', 2399], ['吹风机', 399]]