dump 与 load dumps与loads

最新推荐文章于 2024-04-20 16:23:42 发布

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#!/usr/bin/env python
# -*- coding: utf-8 -*-
# @Time    : 2020/7/4 21:56
# @Author  : HDD
# @Site    : 
# @File    : remember_me.py
# @Software: PyCharm


import json


def get_stored_username():
    filename = 'username.json'
    try:
        with open(filename) as f_obj:
            username = json.load(f_obj)
    except:
        return None


def get_user():
    username = get_stored_username()
    if username:
        print('welcome to back ' + username + '!')
    else:
        username = input("what is your name: ")
        filename = 'username.json'
        with open(filename,'w') as f_obj:
            json.dump(username,f_obj)
            print("I will remember you when you come back," + username + "!")

get_user()

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