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python 正则增量

phpcn_u1582 2017-05-18 10:58:27

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下面的是已经用re.sub采集出来的了，需要在每个 {} 前面加上 “1”： “2”： “3”，请问该如何写这个：

'{"nClass":-1,"nIcon":16}，{"nClass":-1,"nIcon":15},{"nClass":-1,"nIcon":14}'

最终效果：

'“1”：{"nClass":-1,"nIcon":16}，“2”：{"nClass":-1,"nIcon":15},“3”：{"nClass":-1,"nIcon":14}'

phpcn_u1582

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淡淡烟草味2017-05-18 11:00:27 2楼

你描述的不够清楚，你说结果应该是一个list,你是要转换成dict吗？

import json

str = '{"nClass":-1,"nIcon":16},{"nClass":-1,"nIcon":15},{"nClass":-1,"nIcon":14}'
lst = json.loads('[{}]'.format(str))

l  = ['"{}":{}'.format(i+1, json.dumps(v)) for i,v in enumerate(lst)]
print ','.join(l)

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黄舟2017-05-18 11:00:27 1楼

import re
data = '{"nClass":-1,"nIcon":16},{"nClass":-1,"nIcon":15},   {"nClass":-1,"nIcon":14}'
# 提取为数组
data = re.findall('((?=,\s?)?\{.*?\})+', data)
# 下标从1开始, 所以i+1
print ','.join(['"%d":%s' % (i+1, v) for i, v in enumerate(data)])
# "1":{"nClass":-1,"nIcon":16},"2":{"nClass":-1,"nIcon":15},"3":{"nClass":-1,"nIcon":14}

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