该程序中的GUI磁贴在我第一次启动该程序时无法正常工作，但是在我按下“重启”按钮后，它们似乎可以正常工作。似乎问题在于find_closest()在启动时未选择正确的正方形，但在使用play()方法重新启动后，它似乎可以正常工作。
def play(self, event):
"""
user performs a move
calls computer move directly after if game not over
"""
selected_square = self.canvas.find_closest(event.x, event.y)
我尝试将board设置为实例变量，但这并不能解决问题。
这是__init__方法：
class Game(object):
'''
GUI Tic-tac-toe game.
Argument:
parent (tkinter.Tk): the root window object
Attributes:
canvas = (tkinter.Canvas) widget defining game board
game_over = (bool) game state, game over = False, game ongoing = True
moves = (int) number of moves taken by both user and computer
label = (tkinter.Label) shows win/loss/draw message
'''
# Add your class variables if needed here - square size, etc...)
board = [[0, 0, 0],
[0, 0, 0],
[0, 0, 0]]
MAX_MOVES = 9
def __init__(self, parent):
self.parent = parent
parent.title('Tic Tac Toe')
# Create the restart button widget
restart_button = tkinter.Button(self.parent, text='RESTART', width=20,
command=self.restart)
restart_button.pack()
# Create a canvas widget
self.canvas = tkinter.Canvas(parent, background='white', width=300,
height=300)
self.canvas.create_rectangle(0, 0, 300, 300)
self.canvas.create_rectangle(0, 0, 100, 100)
self.canvas.create_rectangle(100, 0, 200, 100)
self.canvas.create_rectangle(200, 0, 300, 100)
self.canvas.create_rectangle(0, 100, 100, 200)
self.canvas.create_rectangle(100, 100, 200, 200)
self.canvas.create_rectangle(200, 100, 300, 200)
self.canvas.create_rectangle(0, 200, 100, 300)
self.canvas.create_rectangle(100, 200, 200, 300)
self.canvas.create_rectangle(200, 200, 300, 300)
self.canvas.pack()
self.label = tkinter.Label(self.parent, text="")
self.label.pack()
self.game_over = False
if not self.game_over:
self.canvas.bind("<Button-1>", self.play)
self.moves = 0
这是重启方法：
def restart(self):
"""
resets game to beginning state
label erased, game tiles turned back white, button-1 rebound, moves set
to zero
"""
for square in self.canvas.find_all():
self.canvas.itemconfigure(square, fill='white')
self.board = [[0, 0, 0],
[0, 0, 0],
[0, 0, 0]]
self.moves = 0
self.game_over = False
self.canvas.bind("<Button-1>", self.play)
self.label.config(text="")
其余代码可在here中找到。
我尝试打印event.x和event.y，看来它们正在正确注册并正确更新了开发板。
答案 0 :(得分：1)
游戏开始时未正确配置画布/绑定。我还没有真正弄清楚您的代码来找出原因（有很多地方需要简短回答），但是您的索引在刚开始时似乎落后了。可以通过将restart()函数的canvas配置循环添加到代码块底部的游戏循环中来解决此问题，如下所示：
def main():
root = tkinter.Tk()
gen_game = Game(root)
**for square in gen_game.canvas.find_all():**
**gen_game.canvas.itemconfigure(square, fill='white')**
root.mainloop()
或通过如下所示将其添加到__init__函数的底部：
def __init__(self, parent):
self.parent = parent
parent.title('Tic Tac Toe')
# Create the restart button widget
restart_button = tkinter.Button(self.parent, text='RESTART', width=20,
command=self.restart)
restart_button.pack()
# Create a canvas widget
self.canvas = tkinter.Canvas(parent, background='white', width=300,
height=300)
self.canvas.create_rectangle(0, 0, 300, 300)
self.canvas.create_rectangle(0, 0, 100, 100)
self.canvas.create_rectangle(100, 0, 200, 100)
self.canvas.create_rectangle(200, 0, 300, 100)
self.canvas.create_rectangle(0, 100, 100, 200)
self.canvas.create_rectangle(100, 100, 200, 200)
self.canvas.create_rectangle(200, 100, 300, 200)
self.canvas.create_rectangle(0, 200, 100, 300)
self.canvas.create_rectangle(100, 200, 200, 300)
self.canvas.create_rectangle(200, 200, 300, 300)
self.canvas.pack()
self.label = tkinter.Label(self.parent, text="")
self.label.pack()
self.game_over = False
if not self.game_over:
self.canvas.bind("<Button-1>", self.play)
self.moves = 0
**for square in self.canvas.find_all():**
**self.canvas.itemconfigure(square, fill='white')**
注意：复制代码时，实际上不包括**。只是为了强调。如果它不是代码块，则将其重新格式化为粗体，但不能同时设置为 bold 和code。