我正在开发一个也有用户帐户对象的刽子手程序。玩家可以登录、创建新帐户或查看帐户详细信息，所有这些都可以在玩游戏之前正常工作。游戏结束后，更新用户的输赢。在退出程序之前，如果我尝试查看帐户(viewAcc 函数)，我会收到错误消息:
'NoneType' object has no attribute 'get_username'.
当我再次运行程序时，我可以登录账户，但是当我查看账户信息时，输赢没有更新。任何帮助将不胜感激，我必须在大约 8 小时内将其上课。
类代码如下:
class Account:
def __init__(self, username, password, name, email, win, loss):
self.__username = username
self.__password = password
self.__name = name
self.__email = email
self.__win = int(win)
self.__loss = int(loss)
def set_username (self, username):
self.__username = username
def set_password (self, password):
self.__password = password
def set_name (self, name):
self.__name = name
def set_email (self, email):
self.__email = email
def set_win (self, win):
self.__win = win
def set_loss (self, loss):
self.__loss = loss
def get_username (self):
return self.__username
def get_password (self):
return self.__password
def get_name (self):
return self.__name
def get_email (self):
return self.__email
def get_win (self):
return self.__win
def get_loss (self):
return self.__loss
这是我的程序代码:
import random
import os
import Account
import pickle
import sys
#List of images for different for different stages of being hanged
STAGES = [
'''
___________
|/ |
| |
|
|
|
|
|
|
|
_____|______
'''
,
'''
___________
|/ |
| |
| (o_o)
|
|
|
|
|
|
_____|______
'''
,
'''
___________
|/ |
| |
| (o_o)
| |
| |
|
|
|
|
_____|______
'''
,
'''
___________
|/ |
| |
| (o_o)
| |/
| |
|
|
|
|
_____|______
'''
,
'''
___________
|/ |
| |
| (o_o)
| \|/
| |
|
|
|
|
_____|______
'''
,
'''
___________
|/ |
| |
| (o_o)
| \|/
| |
| /
|
|
|
_____|______
'''
,
'''
YOU DEAD!!!
___________
|/ |
| |
| (X_X)
| \|/
| |
| / \
|
|
|
_____|______
'''
]
#used to validate user input
ALPHABET = ['abcdefghijklmnopqrstuvwxyz']
#Declares lists of different sized words
fourWords = ['ties', 'shoe', 'wall', 'dime', 'pens', 'lips', 'toys', 'from', 'your', 'will', 'have', 'long', 'clam', 'crow', 'duck', 'dove', 'fish', 'gull', 'fowl', 'frog', 'hare', 'hair', 'hawk', 'deer', 'bull', 'bird', 'bear', 'bass', 'foal', 'moth', 'back', 'baby']
fiveWords = ['jazzy', 'faker', 'alien', 'aline', 'allot', 'alias', 'alert', 'intro', 'inlet', 'erase', 'error', 'onion', 'least', 'liner', 'linen', 'lions', 'loose', 'loner', 'lists', 'nasal', 'lunar', 'louse', 'oasis', 'nurse', 'notes', 'noose', 'otter', 'reset', 'rerun', 'ratio', 'resin', 'reuse', 'retro', 'rinse', 'roast', 'roots', 'saint', 'salad', 'ruins']
sixwords = ['baboon', 'python',]
def main():
#Gets menu choice from user
choice = menu()
#Initializes dictionary of user accounts from file
accDct = loadAcc()
#initializes user's account
user = Account.Account("", "", "", "", 0, 0)
while choice != 0:
if choice == 1:
user = play(user)
if choice == 2:
createAcc(accDct)
if choice == 3:
user = logIn(accDct)
if choice == 4:
viewAcc(user)
choice = menu()
saveAcc(accDct)
#Plays the game
def play(user):
os.system("cls") #Clears screen
hangman = 0 #Used as index for stage view
done = False #Used to signal when game is finished
guessed = [''] #Holds letters already guessed
#Gets the game word lenght from the user
difficulty = int(input("Chose Difficulty/Word Length:\n"\
"1. Easy: Four Letter Word\n"\
"2. Medium: Five Letter Word\n"\
"3. Hard: Six Letter Word\n"\
"Choice: "))
#Validates input
while difficulty < 1 or difficulty > 3:
difficulty = int(input("Invalid menu choice.\n"\
"Reenter Choice(1-3): "))
#Gets a random word from a different list depending on difficulty
if difficulty == 1:
word = random.choice(fourWords)
if difficulty == 2:
word = random.choice(fiveWords)
if difficulty == 3:
word = random.choice(sixWords)
viewWord = list('_'*len(word))
letters = list(word)
while done == False:
os.system("cls")
print(STAGES[hangman])
for i in range(len(word)):
sys.stdout.write(viewWord[i])
sys.stdout.write(" ")
print()
print("Guessed Letters: ")
for i in range(len(guessed)):
sys.stdout.write(guessed[i])
print()
guess = str(input("Enter guess: "))
guess = guess.lower()
while guess in guessed:
guess = str(input("Already guessed that letter.\n"\
"Enter another guess: "))
while len(guess) != 1:
guess = str(input("Guess must be ONE letter.\n"\
"Enter another guess: "))
while guess not in ALPHABET[0]:
guess = str(input("Guess must be a letter.\n"\
"Enter another guess: "))
if guess not in letters:
hangman+=1
for i in range(len(word)):
if guess in letters[i]:
viewWord[i] = guess
guessed += guess
if '_' not in viewWord:
print ("Congratulations! You correctly guessed",word)
done = True
win = user.get_win()
win += 1
username = user.get_username()
password = user.get_password()
name = user.get_name()
email = user.get_email()
loss = user.get_loss()
user = Account.Account(username, password, name, email, win, loss)
if hangman == 6:
os.system("cls")
print()
print(STAGES[hangman])
print("You couldn't guess the word",word.upper(),"before being hanged.")
print("Sorry, you lose.")
done = True
loss = user.get_loss()
loss += 1
username = user.get_username()
password = user.get_password()
name = user.get_name()
email = user.get_email()
win = user.get_win()
user = Account.Account(username, password, name, email, win, loss)
#Loads user accounts from file
def loadAcc():
try:
iFile = open('userAccounts.txt', 'rb')
accDct = pickle.load(iFile)
iFile.close
except IOError:
accDct = {}
return accDct
#Displays the menu
def menu():
os.system('cls')
print("Welcome to Karl-Heinz's Hangman")
choice = int(input("1. Play Hangman\n"\
"2. Create Account\n"\
"3. Log In\n"\
"4. View Account Details\n"\
"0. Quit Program\n"\
"Choice: "))
while choice < 0 or choice > 4:
choice = int(input("Invalid Menu Choice.\n"\
"Reenter Choice: "))
return choice
#Logs user in to existing account
def logIn(accDct):
os.system('cls')
user = Account.Account("","","","",0,0)
username = str(input("Enter Username(case sensitive): "))
if username not in accDct:
print("Account does not exist")
os.system("pause")
return user
temp = Account.Account("","","","",0,0)
temp = accDct[username]
password = str(input("Enter Password(case sensitive): "))
if password != temp.get_password():
print("Incorrect password.")
os.system("pause")
return user
user = accDct[username]
return user
#Creates a new account and a new account file if one doesn't exist
def createAcc(accDct):
os.system('cls')
print("Enter account info:")
username = str(input("UserName: "))
if username in accDct:
print("Account already exists.")
os.system("pause")
return
password = str(input("Password: "))
name = str(input("Name: "))
email = str(input("Email: "))
wins = 0
loss = 0
tempuser = Account.Account(username, password, name, email, wins, loss)
accDct[username] = tempuser
print("Account created.")
os.system("pause")
def viewAcc(user):
os.system('cls')
print("Account Details: ")
print("Username: ",user.get_username())
print("Name: ",user.get_name())
print("Email: ",user.get_email())
print("Wins: ",user.get_win())
print("Losses: ",user.get_loss())
os.system("pause")
#Saves accounts dictionary to file
def saveAcc(accDct):
oFile = open("userAccounts.txt", "wb")
pickle.dump(accDct, oFile)
oFile.close()
main()
非常感谢任何帮助。
请您参考如下方法:
您的 play() 函数没有 return 语句，这意味着它返回 None 作为其返回值。这就是如何将 None 设置到 main() 中的 user 变量中。将 return 语句添加到您的 play() 函数，您应该没问题。
