#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?
我回答过的问题: Python-QA
import json
'''
如果以前存储了用户名,就加载它,并询问是否为该用户的用户名,否则,
就提示用户输入用户名并存储它 。
'''
filename = 'username.json'
try:
except FileNotFoundError: