当我按屏幕上的键盘按钮时，刽子手不能正常工作

Question

def game():
    global no_of_guesses
    no_of_guesses = 0
    imgLb.configure(image=photos[0])
    target_word = random.choice(list_of_words)
    lblword.set(' '.join('_'*len(target_word)))

def guess(letter):
    global no_of_guesses
    if no_of_guesses < 11:
        guessed = list(lblword.get())
        for c in range(len(guessed)):
            if guessed[c] == letter:
                lblword.set(''.join(guessed))
                messagebox.showinfo('Hangman','You guess correctly')
            else:
                no_of_guesses += 1
                imgLb.configure(image=photos[no_of_guesses])
                if no_of_guesses == 11:
                    messagebox.showwarning('Hangman','Game Over!')
                
           
imgLb = Label(win)
imgLb.grid(row=0,column=0,columnspan=3,padx=10,pady=40)
imgLb.configure(image=photos[0])

lblword = StringVar()
WordLb = Label(win,textvariable=lblword)
WordLb.grid(row=0,column=3,columnspan=6,padx=10)

n = 0
for char in ascii_uppercase:
    Button(win,text=char,command=lambda char=char:guess(char),width=4).grid(row=1+n//9,column=n%9)
    n += 1

错误：

    Exception in Tkinter callback
    Traceback (most recent call last):
      File "C:\Python38\lib\tkinter\__init__.py", line 1883, in __call__
        return self.func(*args)
      File "E:/Python/Python Projects Fun/hangman/hangman_code.py", line 52, in <lambda>
        Button(win,text=char,command=lambda char=char:guess(char),width=4).grid(row=1+n//9,column=n%9)
      File "E:/Python/Python Projects Fun/hangman/hangman_code.py", line 37, in guess
        imgLb.configure(image=photos[no_of_guesses])
    IndexError: list index out of range

我试了很多次，当我按下按钮时，错误出现了，有时无法识别正确的单词。然而，有时当我按下一次按钮，整个刽子手就出来了。有人知道如何解决上述问题吗？现在，对于这个问题，我已经通过理解答案来解决它，并尝试自己编写一次，最后程序成功运行

Answer 1

您的问题是希望函数是lambda，而字符是静态的。今天对你们来说是个好日子，因为我也在努力制作屏幕键盘。请注意命令中恰当命名的函数

Button(win,text=char, command=partial(guess, char), width=4).grid(row=1+n//9, column=n%9)