python读取json文件并解析

# -*- coding: utf-8 -*-
import os
import json
import sys
reload(sys)
sys.setdefaultencoding(\'utf-8\')

filelist=os.listdir(\'E:\\log\\files\\\')
for item in filelist:
    print item
newfile=open(\'E:\\log\\files2\\target.txt\',\'w\')
os.chdir(\'E:\\log\\files\')
for item in filelist:
    txt = open(item)
    json_txt=json.load(txt)
    tmp_str=\',\'.join(map(lambda x:str(x),[json_txt[\'id\'],json_txt[\'imageUrl\'],json_txt[\'content\']]))
    newfile.write(tmp_str)

newfile.close()

注：源文件必须是无bom utf8格式