3-4 字典的嵌套

1、字典的嵌套

stu_info = {
    'xiaoming':{"password":123456,'phone':132323,'age':18,'addr':'北京'},
    'xiaohei':{'password':123456,'phone':1223423,'age':18,'addr':'上海'}
}

2、嵌套字典的取值

stu_info = {
    'xiaoming':{"password":123456,'phone':132323,'age':18,'addr':'北京'},
    'xiaohei':{'password':123456,'phone':1223423,'age':18,'addr':'上海'}
}
print(stu_info['xiaoming']['phone'])

3、嵌套字典的增删改查--案例

d = {
    '春波':{
        "car":{'BMW':5,'BENZ':3,'audi':3,'byd':4},
        "house":["北京",'南京','上海'],
        "money":1000000,},
    '乔美玲':{
        "bag":['xx','lv',],
        "house":['三环','4环'],
        "hzp":['skii','ysl'],
        'language':{
            '普通话':10,
            '东北话':20,
            '日语':0,
            '英语':4
        }
    }
}
car_nums = d['春波']['car'].values()


# 1、春波卖了一套上海的房子，卖了500w
d['春波']['house'].pop(-1)
d['春波']['house'].remove('上海')
d['春波']['money']=d['春波']['money']+5000000
d['春波']['money']+=5000000


# 3、春波花了100w，买了一辆劳斯莱斯
d['春波']['money']=d['春波']['money']-10000
d['春波']['car'].append('劳斯莱斯')

# 4、乔美玲的东北话退步了， 从20级变成了10级
d['乔美玲']['language']['东北话']=10

# 5、乔美玲会哪些语言
print(d['乔美玲']['language'].keys())

# 2、算一下马春波有多少辆车
print(car_nums)
print(sum(car_nums))
sum = 0
for n in car_nums:
    sum = n + sum
print(sum)
print(d)