python 读写json

python 读写json

1. 将python dict 写入json文件

   • json.dump()

   •   import json
       dict = {'a':1213,'b':['ad',3,'23fs']}     
       with open("file_path", "w") as json_f:
       	json.dump(dict, json_f)
     

2. 读取json文件

   • json.load()

   •   import json()
       with open("file_path", "r") as json_f:
       	dict = json.load(json_f)
     

3. 将python字典转换成json字符串

   • json.dumps()

   •   import json
       dict = {'a':1213,'b':['ad',3,'23fs']} 
       dict_str = json.dumps(dict)
     

4. 将json字符串转换成python字典

   • json.loads()

   •   import json
       dict_str = '{'a':1213,'b':['ad',3,'23fs']}' 
       dict = json.loads(dict_str)