在Python中提取每個值

Question

我有這樣一個字符串，我必須從中提取值。

process({ "www.google.com": { "target": "google.com", "0": [ 94, 71 ], "1": [ 94, 71 ], "2": [ 94, 71 ], "4": [ 93, 67 ], "categories": { "501": 99, "301": 47, "304": 5 } } }) 

我想訪問諸如"0": [94, 71]，"categories": { "501": 99, "301": 47, "304": 5 }值等

Answer 1

你可以嘗試這樣的事情：

import re 
import ast 

a = """process({ "www.google.com": { "target": "google.com", "0": [ 94, 71 ], "1": [ 94, 71 ], "2": [ 94, 71 ], "4": [ 93, 67 ], "categories": { "501": 99, "301": 47, "304": 5 } } }) 
""" 

d = ast.literal_eval(re.findall(r'{.*}', a)[0]) 
print d, '\n' 
print d['www.google.com']['0'], '\n' 
print d['www.google.com']['categories'] 

輸出：

{'www.google.com': {'target': 'google.com', '1': [94, 71], '0': [94, 71], '2': [94, 71], '4': [93, 67], 'categories': {'301': 47, '304': 5, '501': 99}}} 

[94, 71] 

{'301': 47, '304': 5, '501': 99}