python 编写输出到csv的操作

 def test_write(self):
 fields=[]
 fields.append(orderCode)
 with open(r'./test001.csv', 'a',newline="") as f:
  writer = csv.writer(f)
  writer.writerow(fields)

{"type": "Poi

#-*-coding:utf-8-*-
import csv
import json
import sys
import codecs
def trans(path):
  jsonData = codecs.open(path+'.json', 'r', 'utf-8')
  # csvfile = open(path+'.csv', 'w') # 此处这样写会导致写出来的文件会有空行
  # csvfile = open(path+'.csv', 'wb') # python2下
  csvfile = open(path+'.csv', 'w', newline='') # python3下
  writer = csv.writer(csvfile, delimiter='\t', quoting=csv.QUOTE_ALL)
  flag = True
  for line in jsonData:
    dic = json.loads(line[0:-1])
    if flag:
      # 获取属性列表
      keys = list(dic.keys())
      print (keys)
      writer.writerow(keys) # 将属性列表写入csv中
      flag = False
    # 读取json数据的每一行，将values数据一次一行的写入csv中
    writer.writerow(list(dic.values()))
  jsonData.close()
  csvfile.close()
if __name__ == '__main__':
  path=str(sys.argv[1]) # 获取path参数
  print (path)
  trans(path)

python C:\Users\MaMQ\Documents\jsonToCsv.py C:\Users\MaMQ\Documents\data\geoFood

import csv
import json
import sys
import codecs
def trans(path):
  jsonData = codecs.open(path+'.json', 'r', 'utf-8')
  # csvfile = open(path+'.csv', 'w') # 此处这样写会导致写出来的文件会有空行
  # csvfile = open(path+'.csv', 'wb') # python2下
  csvfile = open(path+'.csv', 'w', newline='') # python3下
  writer = csv.writer(csvfile, delimiter='\t', quoting=csv.QUOTE_ALL)
  keys=['id', 'name', 'category', 'price', 'count', 'type', 'address', 'link', 'x', 'y']
  writer.writerow(keys)
  i = 1
  for dic in jsonData:
    dic = json.loads(dic[0:-1])
    x = dic['coordinates'][0]
    y = dic['coordinates'][1]
    writer.writerow([str(i),dic['name'],dic['category'],dic['price'],dic['count'],dic['type'],dic['address'],dic['link'],x,y])
    i += 1
  jsonData.close()
  csvfile.close()
if __name__ == '__main__':
  path = str(sys.argv[1])
  print (path)
  trans(path)

jsonData = codecs.open(path + '.json', 'r', encoding='utf-8')