改变字典内的value

最新推荐文章于 2024-06-05 11:26:47 发布

weixin_30800807

最新推荐文章于 2024-06-05 11:26:47 发布

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CC 4.0 BY-SA版权

文章标签： json

原文链接：http://www.cnblogs.com/uglyliu/p/6052765.html

import re,os
limit = "8000"
username = "liuhuihuang"

with open("users_dict","r",encoding="utf8") as price_file,open("new_users_dict","w+",encoding="utf8") as write_file:
    list = json.loads(price_file.read())

    if username in list.keys():
        list[username]["limit"] = limit
        write_file.write(json.dumps(list))
os.rename("users_dict","users_dict.bak")
os.rename("new_users_dict","users_dict")
os.remove("users_dict.bak")

users_dict内容如下:
{"liuhuihuang": {"password": "123456", "username": "liuhuihuang", "limit": "10000", "locked": 0}, "alex": {"password": "123456", "username": "alex", "limit": "20000", "locked": 0}}

该段代码的作用就是把用户名为liuhuihuang的limit值从10000改成8000，我这算是比较笨的方法了，蛋疼。

转载于:https://www.cnblogs.com/uglyliu/p/6052765.html