python设置tk退出_Tkinter退出按钮

我刚开始学习python，但有一个问题，我不能用一个按钮关闭我的程序。代码：from tkinter import *

import ScoreboardController as SC

class guiController(Frame):

def open_scoreboard(self):

scoreBoard = SC.ScoreboardController("scores.txt")

for x in range(len(scoreBoard)):

print("Name: {} \nScore: {}". format(scoreBoard[x].name, scoreBoard[x].score))

def start_game(self):

pass

def hide_main_window(self):

self.score_button.pack_forget()

self.start_button.pack_forget()

def create_widgets(self):

self.frame = Frame(master=None, width=800, height=600)

self.frame.pack()

self.start_button = Button(self.frame)

self.start_button["text"] = "Játék indítása"

self.start_button["bg"] = "#5E99FF"

self.start_button["fg"] = "#ffffff"

self.st