python 将dictionary 转化成json并且写入和读取json文件

 1 import json
 2 
 3 #将数据存入json文件 name:[gender,age,password]
 4 user_dict = {"tracy": ["female",16,"123456"],
 5 "bella": ["female",17,"password"],
 6 "colin": ["male",18,"colin"]
 7 }
 8 #写入json文件
 9 with open(‘userinfo.json‘, ‘w‘) as json_file:
10   json.dump(user_dict, json_file)
11 #读取json文件并打印
12 with open(‘userinfo.json‘, ‘r‘) as json_file:
13   load_dict = json.load(json_file)
14   print(load_dict["tracy"])