列表中列表,列表中的字典;字典中的列表,字典中的字典交叉使用

 
 
# 列表包含字典,然后进行enumerate后每个元素有3个值可以操作:下标,字典的key,value

# 字典访问里面的列表
people = {'省份':'福建','chengshi':['xiamen','fz','zz']}
print(people['chengshi'][0])#先找到key,才能对应value,value是列表,可用下标访问
>>>xiamen
for k in people['chengshi']:#循环访问字典中的列表
    print k
>>>
xiamen
fz
zz
# 列表包含字典:
l = [{'name':'hafo','price':12},
      {'name':'dongfeng','price':5}
      ]
print(l[0]['price'])
>>12
for i in l:
    print (i.keys(),i.values())
>>>
(['price', 'name'], [12, 'hafo'])
(['price', 'name'], [5, 'dongfeng'])
# 列表包含列表
l =[['1','2','3'],['a','b']]
print(l[0][1])
>>>2
for i in l:
    for ii in i:
        print(ii)
>>>
1
2
3
a
b

#字典包含字典
d = {'pizza':{'guige':'16','peiliao':'mogu'}}
print (d['pizza']['peiliao'])
>>>mogu
for key,value in d.items():
    for v in value.items():
        print (v)
>>>('peiliao', 'mogu')
('guige', '16')
 

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转载自blog.csdn.net/wanggaoxingh/article/details/79868338