我正在制作一个Hangman类型的游戏。到目前为止，我已经编写了运行良好的CLI版本，我只是将其移植到创建GUI。
我已经陷入困境:-(。该计划尚未完成，还有更多工作要做，但我有两个问题。第一个是标签更新。
当选择一个字母时，它会为字母创建足够的破折号，并将其放在一个名为“字母”的标签中。
当用户输入一个字母时，它会替换破折号，但是它会在旧标签旁边添加一个新标签，而我想替换此标签。我尝试过使用.set（）但这似乎不起作用。
我的第二个问题，这更像是一个逻辑错误（我认为），是我想跟踪输入的字母，以便我可以将其与新输入的字母进行比较并提醒用户。这很有效，但是当输入一个字母时，即使它是第一次输入，它也会警告用户。
以下是代码：
import tkinter
from tkinter import *
from tkinter import messagebox
import random
guesses = 8
def play():
print("play game")
wordList = ["talking", "dollar","choice", "famous", "define", "features"]
wordChoice = random.choice(wordList)
print(wordChoice)
wordLength = (len(wordChoice))
print(wordLength)
guessedLetters = []
dashes = []
def enterLetter():
print("Guess")
global guesses
print(guessedLetters)
while guesses != 0:
guess = entry.get().lower()
if len(guess) >1:
messagebox.showinfo("Error","Sorry, only one letter at a time")
entry.delete("0","end")
return
elif guess.isalpha() == False:
messagebox.showinfo("Error","Letters only please")
entry.delete("0","end")
return
elif guess in guessedLetters:
messagebox.showinfo("Error","You have already used the letter")
entry.delete("0","end")
return
guessedLetters.append(guess)
print(guessedLetters)
print(guesses)
count = 0
for i in range(wordLength):
if wordChoice[i] == guess:
dashes[i] = guess
count = count +1
letter = Label(play, text = dashes, font = ("Arial",20)).grid(row = 2, column = i+1,padx = 10, pady =10)
if count == 0:
guesses -= 1
if guesses == 0:
print("You have ran out of guesses!")
print("The word was:",wordChoice)
###### Play Game GUI
play = Toplevel()
play.title("Play Hangman!")
label = Label(play, text="HANGMAN", font = ("Arial",16)).grid(row = 0)
label = Label(play, text="Enter your guess >").grid(row = 3, column = 0)
for i in range(wordLength):
dashes.append("-")
letter = Label(play, text = dashes, font = ("Arial",20)).grid(row = 2, column = i+1,padx = 10, pady =10)
entry = Entry(play)
entry.grid(row = 3, column = 1, columnspan = wordLength)
enterButton = Button(play, text = "Enter Guess", width = 15, command = enterLetter).grid(row = 3, column = (wordLength+2))
label = Label(play, text = "Letter used: ").grid(row = 4, columnspan = 2)
label = Label(play, text = "").grid(row= 4, columnspan = 6)
def scores():
print("check scores")
def howToPlay():
print("how to play")
####### Main Menu
root = Tk()
root.geometry("500x300")
root.title("HANGMAN")
label = Label(root, text="HANGMAN", font = ("Arial",30)).grid(row = 0, columnspan = 3)
label = Label(root, text = "Option 1 :", font = ("Arial",12)).grid(row = 1, column = 1)
playButton = Button(root, text = "Play Game", width = 15, command = play).grid(row = 1, column = 2)
label = Label(root, text = "Option 2 :", font = ("Arial",12)).grid(row = 2, column = 1)
instructionsButton = Button(root, text = "How to play", width = 15, command = howToPlay).grid(row = 2, column = 2)
label = Label(root, text = "Option 3 :", font = ("Arial",12)).grid(row = 3, column = 1)
scoresButton = Button(root, text = "View Scores", width = 15, command = scores).grid(row = 3, column = 2)
label = Label(root, text = "Option 4 :", font = ("Arial",12)).grid(row = 4, column = 1)
exitButton = Button(root, text = "Exit", width = 15, command = exit).grid(row = 4, column = 2)
root.mainloop()
答案 0 :(得分：1)
您无法更新标签的原因是因为您尚未将其存储在任何变量中。 Label对象和所有其他小部件的grid，pack和place函数返回None，因此当您调用时：
letter = Label(play, text = dashes, font = ("Arial",20)).grid(row = 2, column = i+1,padx = 10, pady =10)
您的标签无法通过可变字母访问。要解决此问题，您应该将其拆分为：
letter = Label(play, text = dashes, font = ("Arial",20))
letter.grid(row = 2, column = i+1,padx = 10, pady =10)
要更新该标签的文字，您可以在其上调用.configure(text = 'new text')。
# letter = Label(play, text = dashes, font = ("Arial",20)).grid(row = 2, column = i+1,padx = 10, pady =10) #
letter.configure(text = dashes)
至于你的第二个问题，我认为你在函数while中混淆了if循环和enterLetter语句。每次点击都会调用一次，如果玩家的猜测已经用完，你只需要检查一次。
if guesses != 0:
...
elif guesses == 0:
....
答案 1 :(得分：1)
if guesses > 0: 代码：
import tkinter
from tkinter import *
from tkinter import messagebox
import random
guesses = 8
letter = None
def play():
global letter
print("play game")
wordList = ["talking", "dollar","choice", "famous", "define", "features"]
wordChoice = random.choice(wordList)
print(wordChoice)
wordLength = (len(wordChoice))
print(wordLength)
guessedLetters = []
dashes = []
play = Toplevel()
play.title("Play Hangman!")
label = Label(play, text="HANGMAN", font = ("Arial",16)).grid(row = 0)
label = Label(play, text="Enter your guess >").grid(row = 3, column = 0)
for i in range(wordLength):
dashes.append("-")
letter = Label(play, text = dashes, font = ("Arial",20))
letter.grid(row = 2, column = i+1,padx = 10, pady =10)
print(letter)
def enterLetter():
print("Guess")
global guesses, letter
print(guessedLetters)
if guesses != 0:
guess = entry.get().lower()
if len(guess) >1:
messagebox.showinfo("Error","Sorry, only one letter at a time")
return
elif guess.isalpha() == False:
messagebox.showinfo("Error","Letters only please")
return
elif guess in guessedLetters:
messagebox.showinfo("Error","You have already used the letter")
return
entry.delete("0","end")
guessedLetters.append(guess)
#print(guessedLetters)
#print(guesses)
print(dashes)
count = 0
for i in range(wordLength):
if wordChoice[i] == guess:
dashes[i] = guess
count += 1
letter.configure(text = dashes)
if count == 0:
guesses -= 1
if "".join(dashes) == wordChoice:
print("succsess!")
play.destroy()
return
if guesses == 0:
print("You have ran out of guesses!")
print("The word was:",wordChoice)
###### Play Game GUI
entry = Entry(play)
entry.grid(row = 3, column = 1, columnspan = wordLength)
enterButton = Button(play, text = "Enter Guess", width = 15, command = enterLetter).grid(row = 3, column = (wordLength+2))
label = Label(play, text = "Letter used: ").grid(row = 4, columnspan = 2)
label = Label(play, text = "").grid(row= 4, columnspan = 6)
def scores():
print("check scores")
def howToPlay():
print("how to play")
####### Main Menu
root = Tk()
root.geometry("500x300")
root.title("HANGMAN")
label = Label(root, text="HANGMAN", font = ("Arial",30)).grid(row = 0, columnspan = 3)
label = Label(root, text = "Option 1 :", font = ("Arial",12)).grid(row = 1, column = 1)
playButton = Button(root, text = "Play Game", width = 15, command = play).grid(row = 1, column = 2)
label = Label(root, text = "Option 2 :", font = ("Arial",12)).grid(row = 2, column = 1)
instructionsButton = Button(root, text = "How to play", width = 15, command = howToPlay).grid(row = 2, column = 2)
label = Label(root, text = "Option 3 :", font = ("Arial",12)).grid(row = 3, column = 1)
scoresButton = Button(root, text = "View Scores", width = 15, command = scores).grid(row = 3, column = 2)
label = Label(root, text = "Option 4 :", font = ("Arial",12)).grid(row = 4, column = 1)
exitButton = Button(root, text = "Exit", width = 15, command = exit).grid(row = 4, column = 2)
root.mainloop()
我希望这会对你有所帮助。