#定义列表

>>>product_list = [
["Iphone7",6500],
["MacBook",12000],
["PythonBook",99],
["Coffe",31],
["bike",999]
]

#查看列表
>>>product_list
[['Iphone7', 6500], ['MacBook', 12000], ['PythonBook', 99], ['Coffe', 31], ['bike', 999]]

#查看列表中的第一个内容

>>>product_list[0]
['Iphone7', 6500]