如何检查我的python乌龟中的sudoku是否正确？

Question

我正在尝试编写一个Sudoku程序。它有效，绘制板子，您可以通过单击屏幕，选择一个框（A2或C7或G4等），然后输入1到9的数字来自己填充缺失的数字。我还添加了一个重置​​按钮这清除了您添加的所有数字。但是现在我也想做，以便检查sudoku是否正确。但是我想不出一种方法。我尝试使用：

#checks for a win
    if a2==1 and a5==7 and a8==9 and a9==2 and b3==9 and b4==1 and b5==3 and b6==4 and b7==7 and b8==6 and b9==8 and c1==4 and c4==6 and c5==2 and c6==9 and c7==5 and d1==2 and d2==6 and d4==4 and d6==5 and d7==9 and d9==7 and e2==7 and e3==4 and e7==1 and e8==2 and f1==8 and f3==1 and f4==7 and f6==2 and f8==4 and f9==3 and g3==8 and g4==9 and g5==4 and g6==7 and g9==6 and h1==6 and h2==9 and h3==2 and h4==3 and h5==5 and h6==1 and h7==8 and i1==7 and i2==4 and i5==8 and i8==1 and i9==9:
        win.goto(0,0)
        win.color("green")
        win.write("Correct", font=("Arial", 64, "bold"), align="center")
    else:
        win.clear()
        pass

部分，但是每当我输入一个数字时，我都会遇到错误。我仍然可以继续播放THO，每次输入一个数字时，它只是给我一个错误：

Exception in Tkinter callback
Traceback (most recent call last):
  File "/Applications/Thonny.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/tkinter/__init__.py", line 1705, in __call__
    return self.func(*args)
  File "/Applications/Thonny.app/Contents/Frameworks/Python.framework/Versions/3.7/lib/python3.7/turtle.py", line 675, in eventfun
    fun(x, y)
  File "/Users/xxx/Library/CloudStorage/OneDrive-xxx/python/sudoku 4 .py", line 480, in play
    if a2==1 and a5==7 and a8==9 and a9==2 and b3==9 and b4==1 and b5==3 and b6==4 and b7==7 and b8==6 and b9==8 and c1==4 and c4==6 and c5==2 and c6==9 and c7==5 and d1==2 and d2==6 and d4==4 and d6==5 and d7==9 and d9==7 and e2==7 and e3==4 and e7==1 and e8==2 and f1==8 and f3==1 and f4==7 and f6==2 and f8==4 and f9==3 and g3==8 and g4==9 and g5==4 and g6==7 and g9==6 and h1==6 and h2==9 and h3==2 and h4==3 and h5==5 and h6==1 and h7==8 and i1==7 and i2==4 and i5==8 and i8==1 and i9==9:
NameError: name 'a5' is not defined

但是变量定义正确吗？输入号码时，我会添加它们。因此，我所做的是，每个空盒子都有一个变量，每次您在一个空框中输入一个数字时，它都会更改为您放入的数字。然后，当所有数字正确时，它都会告诉您。这是整个代码，对不起，如果它太长或有点混乱，我正在努力：

import turtle

tur = turtle.Turtle() #turtle for writing missing numbers
tur.speed(0)
tur.up()
tur.ht()

pen = turtle.Turtle() #turtle for drawing the whole board and known numbers
pen.speed(0)
pen.up()
pen.ht()

win = turtle.Turtle() #turtle for when you have it correct
win.ht()
win.speed(0)
win.up()

screen = turtle.Screen()
screen.setup(800,800)
screen.tracer(0)

LENGTH_BOARD = 600

fontBoard = ("Arial", 14,)
fontNumbers = ("Arial", 36)

#this is function for writing the known numbers
def sudokuSetup(x,y,height,length,text,color):
    pen.goto(x,y)
    pen.color(color)
    pen.right(90)
    pen.forward(height)
    pen.left(90)
    pen.backward(LENGTH_BOARD/19)
    pen.forward(length)
    pen.write(text, font=fontNumbers, align="center")

#this is function for writing the missing numbers put in by the user
def sudokuPlay(x,y,height,length,text):
    #drawing white square/erase previous number
    tur.goto(x,y)
    tur.color("white")
    tur.fillcolor("white")
    tur.right(90)
    tur.forward(height-50)
    tur.left(90)
    tur.backward(LENGTH_BOARD/19)
    tur.forward(length-30)
    tur.down()
    tur.begin_fill()
    for i in range(3):
        tur.forward(60)
        tur.right(90)
    tur.forward(60)
    tur.end_fill()
    tur.up()

    #going to right position and writing the number
    tur.goto(x,y)
    tur.color("dark blue")
    tur.right(180)
    tur.forward(height)
    tur.left(90)
    tur.backward(LENGTH_BOARD/19)
    tur.forward(length)
    tur.write(text, font=fontNumbers, align="center")

#letters on left side
def letters(text,length):
    pen.forward(length/9)
    pen.write(text, font=fontBoard, align="center")

#the board itself
def board(x,y,length):
    pen.goto(x,y)
    pen.down()
    
    #border
    for i in range(4):
        pen.width(2)
        pen.forward(length)
        pen.right(90)
    
    #lines vertical
    for i in range(3):
        for i in range(2):
            pen.width(1)
            pen.forward(length/9)
            pen.right(90)
            pen.forward(length)
            pen.right(180)
            pen.forward(length)
            pen.right(90)
            
        pen.forward(length/9)
        pen.right(90)
        pen.width(2)
        pen.forward(length)
        pen.right(180)
        pen.forward(length)
        pen.right(90)
        
    pen.up()
    pen.width(1)
    pen.goto(x,y)
    pen.right(90)
    pen.down() 
    
    #horizontal lines
    for i in range(3):
        for i in range(2):
            pen.width(1)
            pen.forward(length/9)
            pen.left(90)
            pen.forward(length)
            pen.left(180)
            pen.forward(length)
            pen.left(90)
            
        pen.forward(length/9)
        pen.left(90)
        pen.width(2)
        pen.forward(length)
        pen.left(180)
        pen.forward(length)
        pen.left(90)
    
    #numbers on top
    numb = 1
    pen.up()
    pen.goto(x,y)
    pen.left(180)
    pen.forward(20)
    pen.right(90)
    pen.backward(length/18)
    for i in range(9):
        pen.forward(length/9)
        pen.write(f"{numb}", font=fontBoard, align="center")
        numb += 1
    
    #letters on left side
    pen.goto(x,y)
    pen.left(180)
    pen.forward(20)
    pen.left(90)
    pen.backward(length/20)
    letters("A",length)
    letters("B",length)
    letters("C",length)
    letters("D",length)
    letters("E",length)
    letters("F",length)
    letters("G",length)
    letters("H",length)
    letters("I",length)
    
    pen.left(90)
    
    #these are the known numbers
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*1)-12, (LENGTH_BOARD/9)*1, "3","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*1)-12, (LENGTH_BOARD/9)*3, "6","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*1)-12, (LENGTH_BOARD/9)*4, "5","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*1)-12, (LENGTH_BOARD/9)*6, "8","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*1)-12, (LENGTH_BOARD/9)*7, "4","black")

    sudokuSetup(-300,300,((LENGTH_BOARD/9)*2)-12, (LENGTH_BOARD/9)*1, "5","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*2)-12, (LENGTH_BOARD/9)*2, "2","black")
    
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*3)-12, (LENGTH_BOARD/9)*2, "8","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*3)-12, (LENGTH_BOARD/9)*3, "7","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*3)-12, (LENGTH_BOARD/9)*8, "3","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*3)-12, (LENGTH_BOARD/9)*9, "1","black")
    
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*4)-12, (LENGTH_BOARD/9)*3, "3","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*4)-12, (LENGTH_BOARD/9)*5, "1","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*4)-12, (LENGTH_BOARD/9)*8, "8","black")
    
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*5)-12, (LENGTH_BOARD/9)*1, "9","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*5)-12, (LENGTH_BOARD/9)*4, "8","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*5)-12, (LENGTH_BOARD/9)*5, "6","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*5)-12, (LENGTH_BOARD/9)*6, "3","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*5)-12, (LENGTH_BOARD/9)*9, "5","black")
    
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*6)-12, (LENGTH_BOARD/9)*2, "5","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*6)-12, (LENGTH_BOARD/9)*5, "9","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*6)-12, (LENGTH_BOARD/9)*7, "6","black")
    
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*7)-12, (LENGTH_BOARD/9)*1, "1","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*7)-12, (LENGTH_BOARD/9)*2, "3","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*7)-12, (LENGTH_BOARD/9)*7, "2","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*7)-12, (LENGTH_BOARD/9)*8, "5","black")
    
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*8)-12, (LENGTH_BOARD/9)*8, "7","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*8)-12, (LENGTH_BOARD/9)*9, "4","black")
    
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*9)-12, (LENGTH_BOARD/9)*3, "5","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*9)-12, (LENGTH_BOARD/9)*4, "2","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*9)-12, (LENGTH_BOARD/9)*6, "6","black")
    sudokuSetup(-300,300,((LENGTH_BOARD/9)*9)-12, (LENGTH_BOARD/9)*7, "3","black")

#the reset button
def reset_button():
    pen.goto(-100,-320)
    pen.down()
    for i in range(2):
        pen.forward(200)
        pen.right(90)
        pen.forward(65)
        pen.right(90)
    pen.up()
    pen.goto(0,-360)
    pen.write("Reset board", font= ("Arial", 20, "normal"), align="center")

#draws everything
def draw_board():
    board(-300,300,LENGTH_BOARD)
    reset_button()
    screen.update()

#the game
def play(x,y):
   
    if x > -300 and x < 300 and y > -300 and y < 300: #if you click on the board
        which_one = turtle.textinput("Welk vakje?" , "In welk vakje wil je een nummer plaatsen?") #it asks for the box
        what_number = turtle.numinput("Welk nummer?", "Welk nummer wil je invoeren?", minval=1, maxval=9) #and then for a number 1-9
        
        if which_one == "A2" or which_one == "a2": #when you choose box a2
            a2 = 0 #variable a2 is set to 0 
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*1)-12, (LENGTH_BOARD/9)*2, int(what_number)) #fills in the number in the right box
            a2 += what_number #changes the a2 variable to the number you entered
        
        elif which_one == "B3" or which_one == "b3": #then it repeats for all the empty boxes
            b3 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*2)-12, (LENGTH_BOARD/9)*3, int(what_number))
            b3 += what_number
        
        elif which_one == "C1" or which_one == "c1":
            c1 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*3)-12, (LENGTH_BOARD/9)*1, int(what_number))
            c1 += what_number
    
        elif which_one == "A5" or which_one == "a5":
            a5 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*1)-12, (LENGTH_BOARD/9)*5, int(what_number))
            a5 += what_number
    
        elif which_one == "B4" or which_one == "b4":
            b4 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*2)-12, (LENGTH_BOARD/9)*4, int(what_number))
            b4 += what_number
        
        elif which_one == "B5" or which_one == "b5":
            b5 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*2)-12, (LENGTH_BOARD/9)*5, int(what_number))
            b5 += what_number
        
        elif which_one == "B6" or which_one == "b6":
            b6 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*2)-12, (LENGTH_BOARD/9)*6, int(what_number))
            b6 += what_number
        
        elif which_one == "C4" or which_one == "c4":
            c4 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*3)-12, (LENGTH_BOARD/9)*4, int(what_number))
            c4 += what_number
        
        elif which_one == "C5" or which_one == "c5":
            c5 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*3)-12, (LENGTH_BOARD/9)*5, int(what_number))
            c5 += what_number
        
        elif which_one == "C6" or which_one == "c6":
            c6 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*3)-12, (LENGTH_BOARD/9)*6, int(what_number))
            c6 += what_number
    
        elif which_one == "A8" or which_one == "a8":
            a8 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*1)-12, (LENGTH_BOARD/9)*8, int(what_number))
            a8 += what_number
        
        elif which_one == "A9" or which_one == "a9":
            a9 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*1)-12, (LENGTH_BOARD/9)*9, int(what_number))
            a9 += what_number
        
        elif which_one == "B7" or which_one == "b7":
            b7 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*2)-12, (LENGTH_BOARD/9)*7, int(what_number))
            b7 += what_number
        
        elif which_one == "B8" or which_one == "b8":
            b8 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*2)-12, (LENGTH_BOARD/9)*8, int(what_number))
            b8 += what_number
        
        elif which_one == "B9" or which_one == "b9":
            b9 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*2)-12, (LENGTH_BOARD/9)*9, int(what_number))
            b9 += what_number
        
        elif which_one == "C7" or which_one == "c7":
            c7 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*3)-12, (LENGTH_BOARD/9)*7, int(what_number))
            c7 += what_number
    
        elif which_one == "D1" or which_one == "d1":
            d1 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*4)-12, (LENGTH_BOARD/9)*1, int(what_number))
            d1 += what_number
        
        elif which_one == "D2" or which_one == "d2":
            d2 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*4)-12, (LENGTH_BOARD/9)*2, int(what_number))
            d2 += what_number
        
        elif which_one == "E2" or which_one == "e2":
            e2 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*5)-12, (LENGTH_BOARD/9)*2, int(what_number))
            e2 += what_number
        
        elif which_one == "E3" or which_one == "e3":
            e3 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*5)-12, (LENGTH_BOARD/9)*3, int(what_number))
            e3 += what_number
        
        elif which_one == "F1" or which_one == "f1":
            f1 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*6)-12, (LENGTH_BOARD/9)*1, int(what_number))
            f1 += what_number
        
        elif which_one == "F3" or which_one == "f3":
            f3 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*6)-12, (LENGTH_BOARD/9)*3, int(what_number))
            f3 += what_number
    
        elif which_one == "D4" or which_one == "d4":
            d4 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*4)-12, (LENGTH_BOARD/9)*4, int(what_number))
            d4 += what_number
        
        elif which_one == "D6" or which_one == "d6":
            d6 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*4)-12, (LENGTH_BOARD/9)*6, int(what_number))
            d6 += what_number
        
        elif which_one == "F4" or which_one == "f4":
            f4 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*6)-12, (LENGTH_BOARD/9)*4, int(what_number))
            f4 += what_number
        
        elif which_one == "F6" or which_one == "f6":
            f6 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*6)-12, (LENGTH_BOARD/9)*6, int(what_number))
            f6 += what_number
    
        elif which_one == "D7" or which_one == "d7":
            d7 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*4)-12, (LENGTH_BOARD/9)*7, int(what_number))
            d7 += what_number
        
        elif which_one == "D9" or which_one == "d9":
            d9 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*4)-12, (LENGTH_BOARD/9)*9, int(what_number))
            d9 += what_number
        
        elif which_one == "E7" or which_one == "e7":
            e7 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*5)-12, (LENGTH_BOARD/9)*7, int(what_number))
            e7 += what_number
        
        elif which_one == "E8" or which_one == "e8":
            e8 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*5)-12, (LENGTH_BOARD/9)*8, int(what_number))
            e8 += what_number
        
        elif which_one == "F8" or which_one == "f8":
            f8 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*6)-12, (LENGTH_BOARD/9)*8, int(what_number))
            f8 += what_number
            
        elif which_one == "F9" or which_one == "f9":
            f9 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*6)-12, (LENGTH_BOARD/9)*9, int(what_number))
            f9 += what_number
    
        elif which_one == "G3" or which_one == "g3":
            g3 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*7)-12, (LENGTH_BOARD/9)*3, int(what_number))
            g3 += what_number
        
        elif which_one == "H1" or which_one == "h1":
            h1 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*8)-12, (LENGTH_BOARD/9)*1, int(what_number))
            h1 += what_number
        
        elif which_one == "H2" or which_one == "h2":
            h2 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*8)-12, (LENGTH_BOARD/9)*2, int(what_number))
            h2 += what_number
        
        elif which_one == "H3" or which_one == "h3":
            h3 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*8)-12, (LENGTH_BOARD/9)*3, int(what_number))
            h3 += what_number
        
        elif which_one == "I1" or which_one == "i1":
            i1 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*9)-12, (LENGTH_BOARD/9)*1, int(what_number))
            i1 += what_number
            
        elif which_one == "I2" or which_one == "i2":
            i2 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*9)-12, (LENGTH_BOARD/9)*2, int(what_number))
            i2 += what_number
    
        elif which_one == "G4" or which_one == "g4":
            g4 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*7)-12, (LENGTH_BOARD/9)*4, int(what_number))
            g4 += what_number
        
        elif which_one == "G5" or which_one == "g5":
            g5 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*7)-12, (LENGTH_BOARD/9)*5, int(what_number))
            g5 += what_number
        
        elif which_one == "G6" or which_one == "g6":
            g6 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*7)-12, (LENGTH_BOARD/9)*6, int(what_number))
            g6 += what_number
        
        elif which_one == "H4" or which_one == "h4":
            h4 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*8)-12, (LENGTH_BOARD/9)*4, int(what_number))
            h4 += what_number
        
        elif which_one == "H5" or which_one == "h5":
            h5 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*8)-12, (LENGTH_BOARD/9)*5, int(what_number))
            h5 += what_number
            
        elif which_one == "H6" or which_one == "h6":
            h6 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*8)-12, (LENGTH_BOARD/9)*6, int(what_number))
            h6 += what_number
        
        elif which_one == "I5" or which_one == "i5":
            i5 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*9)-12, (LENGTH_BOARD/9)*5, int(what_number))
            i5 += what_number
    
        elif which_one == "G9" or which_one == "g9":
            g9 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*7)-12, (LENGTH_BOARD/9)*9, int(what_number))
            g9 += what_number
        
        elif which_one == "H7" or which_one == "h7":
            h7 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*8)-12, (LENGTH_BOARD/9)*7, int(what_number))
            h7 += what_number
        
        elif which_one == "I8" or which_one == "i8":
            i8 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*9)-12, (LENGTH_BOARD/9)*8, int(what_number))
            i8 += what_number
        
        elif which_one == "I9" or which_one == "i9":
            i9 = 0
            sudokuPlay(-300,300,((LENGTH_BOARD/9)*9)-12, (LENGTH_BOARD/9)*9, int(what_number))
            i9 += what_number
        
        else: #when you fill in anything else
            pass
    
    #this is the reset button
    elif x > -100 and x < 100 and y > -400 and y < -320: #if you click on the reset button
        tur.clear() #it resets the numbers you put in
        win.clear() #it resets the win turtle if you won and want to do it again for some reason :p
        
    #checks for a win
    if a2==1 and a5==7 and a8==9 and a9==2 and b3==9 and b4==1 and b5==3 and b6==4 and b7==7 and b8==6 and b9==8 and c1==4 and c4==6 and c5==2 and c6==9 and c7==5 and d1==2 and d2==6 and d4==4 and d6==5 and d7==9 and d9==7 and e2==7 and e3==4 and e7==1 and e8==2 and f1==8 and f3==1 and f4==7 and f6==2 and f8==4 and f9==3 and g3==8 and g4==9 and g5==4 and g6==7 and g9==6 and h1==6 and h2==9 and h3==2 and h4==3 and h5==5 and h6==1 and h7==8 and i1==7 and i2==4 and i5==8 and i8==1 and i9==9: 
#if all the variables have the right number
        win.goto(0,0)
        win.color("green")
        win.write("Correct", font=("Arial", 64, "bold"), align="center") #it writes "Correct" on screen
    else: #if the variables dont have the right number
        win.clear() #it clears win turtle just in case
        pass #and it passes so you can keep playing

draw_board() #draws everything
turtle.onscreenclick(play, 1, True) #makes sure you can click
turtle.done()

我希望我在代码中做什么很清楚！如果没有，请告诉我，那我可以更改或更好地解释。 :)