在Python中使用json模块的入门问题

问题描述

问 题

 #coding:GBK
import json
def getstoredname():
    filename = 'username.json'
    try:
        with open(filename) as f:
            username = json.load(f)
    except:
        return None
    else:
        return username
        
def getnewname():
    username = input("What is your name? ")
    filename = 'username.json'
    with open(filename,'a+') as f:
        json.dump(username,f)
    return username
    
def greetuser():
    username = getstoredname()
    if username:
        print("Welcome back, " + username + "!")
    else:
        username = getnewname()
        print ("We'll remember you when you come back, " + username + 
            "!")

greetuser()

这个问题应该怎么改代码？

解决方案

def greetuser():
    username = getstoredname()
    if username and input("Is that your name: " + username + " (y/n)")=="y":       
        print("Welcome back, " + username + "!")
    else:
        username = getnewname()
        print ("We'll remember you when you come back, " + username + 
            "!")

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我回答過的問題: Python-QA

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