文件json

import json
def op_data(filename,dic=None):
 ???if dic:#写入进去
 ??????with open(filename,‘w‘,encoding=‘utf-8‘) as fw:
 ??????????json.dump(dic,fw,ensure_ascii=False,indent=3)#字典转成json
 ???else:
 ???????with open(filename,encoding=‘utf-8‘) as fr:
 ???????????return ?json.load(fr)#json转成Python类型
FILENAME=‘user_info.json‘
all_users=op_data(FILENAME)
print(all_users)
for i in range(3):
 ???choice=input(‘输入，1、注册，2、删除:‘)
 ???if choice==‘1‘:
 ???????username=input("username:")
 ???????pwd=input("pwd:")
 ???????if username not in all_users:
 ???????????all_users[username]=pwd
 ???????????op_data(FILENAME,all_users)
 ???elif choice==‘2‘:
 ???????username=input("username:")
 ???????all_users.pop(username)
 ???????op_data(FILENAME, all_users)

文件json

原文地址：https://www.cnblogs.com/irisx/p/8878035.html