某网站有很多用户,每个用户都有单独的用户名。使用字典存储用户的信息,其中以用户名为字典键,用户的信息为字典的值。由于用户信息中存有姓名和地址信息,所有需要在字典中嵌套字典。

# 创建字典存放网站用户信息
users = {
    'aeinstein': {
        'first': 'albert',
        'last': 'einstein',
        'location': 'princeton',
        },
    'mcurie': {
        'first': 'marie',
        'last': 'curie',
        'location': 'paris',
        },
    }
# 使用for循环遍历字典,输出用户信息
for username,user_info in users.items():
    print ("\nUsername: " + username)
    fullname = user_info['first'] + " " + user_info['last']
    location = user_info['location']

    print ("\tFull name: " + fullname.title())
    print ("\tLocation: " + location.title())



输出为:

>>> ================================ RESTART ================================
>>> 

Username: aeinstein
	Full name: Albert Einstein
	Location: Princeton

Username: mcurie
	Full name: Marie Curie
	Location: Paris