如何使用此字符串來讀取Python中的字典？

Question

我有這個字符串。我如何讀出ip和fw數據？

new_string = b'{"data":[{"ip":"103.170.120.105","fw":"443"}, 
         {"ip":"185.181.217.91","fw":"204"}, 
         {"ip":"135.203.68.159","fw":"105"}]}' 

Answer 1

如果您想要轉到該路線，則可以使用JSON模塊或ast.literal_eval。

使用JSON，

import json 

new_string = b'{"data":[{"ip":"103.170.120.105","fw":"443"},{"ip":"185.181.217.91","fw":"204"},{"ip":"135.203.68.159","fw":"105"}]}' 

# If you're using Python3, you may need to do this: 
new_string = new_string.decode('utf-8') 

json_string = json.loads(new_string) 
data = json_string['data'] 

for item in data: 
    # your ip and fw will be accessible 
    # as item['ip'] and item['fw'] 

    print item['ip'], item['fw'] 

使用ast.literal_eval：

import ast 

new_string = b'{"data":[{"ip":"103.170.120.105","fw":"443"},{"ip":"185.181.217.91","fw":"204"},{"ip":"135.203.68.159","fw":"105"}]}' 

# If you're using Python3, you may need to do this: 
new_string = new_string.decode('utf-8') 

my_dictionary = ast.literal_eval(new_string) 
data = my_dictionary['data'] 

for item in data: 
    # your ip and fw are accessible the same way as above 
    print item['ip'], item['fw']