product = [["冰箱", 2199], ["电饭煲", 399], ["洗衣液", 59], ["吹风机", 129]]
for item in product :
print("商品:{},价格:{}".format(item[0],item[1]))
#1.2删除列表中第二个商品,并在末尾追加 1 个新商品,输出最终列表。(15 分)
del product[1]
product.append (["空气炸锅", 499])
print("修改后商品列表:",product)
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商品:冰箱,价格:2199
商品:电饭煲,价格:399
商品:洗衣液,价格:59
商品:吹风机,价格:129
修改后商品列表: [['冰箱', 2199], ['洗衣液', 59], ['吹风机', 129], ['空气炸锅', 499]]