json中loads的用法

python中json中的loads()和dumps()它们的作用经常弄换了，这里记录下，loads方法是把json对象转化为python对象，dumps方法是把pyhon对象转化为json对象，我是这么理解的，先上段loas的代码:

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#!/usr/bin/env python #coding=utf8 import os import sys import json BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__))) sys.path.append(BASE_DIR) db_user_info = BASE_DIR + r"\database\users_dict" username = "liuhui" def quxian():     with open(db_user_info, "r+", encoding="utf8") as user_file:         users_info = json.loads(user_file.read())         if username in users_info.keys():             print("ok")         else:             print("wrong") quxian()