所以我正在为一个类项目做一个游戏，我想添加一个按钮网格，大小不重要，但经过2天的尝试，我迷失了这里是我的Python代码：

import numpy as np
from collections import namedtuple

from kivy.app import App

from kivy.clock import Clock

from kivy.core.audio import SoundLoader
from kivy.core.window import Window
from kivy.graphics import Canvas
from kivy.graphics import Rectangle
from kivy.lang import Builder

from kivy.properties import ObjectProperty
from kivy.properties import ListProperty

from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.uix.floatlayout import FloatLayout
from kivy.uix.gridlayout import GridLayout
from kivy.uix.label import Label
from kivy.uix.textinput import TextInput
from kivy.uix.togglebutton import ToggleButton
from kivy.uix.screenmanager import NoTransition 
from kivy.uix.screenmanager import ScreenManager, Screen
from kivy.uix.widget import Widget

field = namedtuple('field', ['rows', 'cols'])
FIELD = field(30, 60)

global a
a = "play"

        
class Jeu(Screen):     
    #here is the screen for the button grid
    #
    #
    #
    def test(self):
        Clock.schedule_interval(the_callback,0.1)
    def stop(self):
        Clock.unschedule(the_callback)

class MenuScreen(Screen):     
    pass
            
class RuleScreen (Screen):
    pass

class SettingsScreen(Screen):
    sound=SoundLoader.load('oui.wav')
    def fullscreen(self):
        name = self.ids.fullscreen.text
        if  Window.fullscreen == True:
            self.ids.fullscreen.text = 'Fullscreen off'
            Window.fullscreen = False
        else:
            self.ids.fullscreen.text = 'Fullscreen on'
            Window.fullscreen = True
    
    def music(self):
        sound=SoundLoader.load('oui.wav')
        name = self.ids.music.text
        global a
        if a == "play":
            self.ids.music.text = 'Music off'
            a= "stop"
             
        else:
            self.ids.music.text = 'Music on'
            a= "play"

class PloytestApp(App):
    def build(self):
        # Create the screen manager
        sm = ScreenManager()
        sm.add_widget(MenuScreen(name='menu'))
        sm.add_widget(Jeu(name='jeu'))
        sm.add_widget(RuleScreen(name='rules'))
        sm.add_widget(SettingsScreen(name='settings'))
        sm.transition = NoTransition()
        return sm

sound=SoundLoader.load('oui.wav')
def my_callback(dt):
    if a=="stop":
        sound.stop()
    elif a =="play":
        sound.play()
event = Clock.schedule_interval(my_callback, 1 / 30.)

def the_callback(dt):
    print("aaaaa")
    
if __name__ == '__main__':
    PloytestApp().run()
    App.stop(exit())

还有我的kv女孩

#: import Window kivy.core.window.Window 
#:  import Clock kivy.clock

    
<MenuScreen>:
    GridLayout:
        cols: 1
        Image:
            id: gif
            source: 'test.zip' 
            allow_stretch: True
            keep_aspect: False
            anim_loop: 0
            Label:
                pos: self.parent.pos
                size: self.parent.size
                text:"Connway's game of life"
                font_size: 60
                color: 0.5, 0.8, 1, 1
                
        GridLayout:
            cols: 1
            Button:
                text: 'Play'
                on_release:
                    root.manager.current = 'jeu'
            Button:
                text:  'How to Play'
                on_release:
                    root.manager.current = 'rules'
            Button:
                text: 'Goto settings'
                on_release: 
                    root.manager.current = 'settings'
            Button:
                text: 'Quit'
                on_release: app.stop() 

<Jeu>:  
    GridLayout:
            cols:1
            Label:
               ** #here is the grid of button**
                text: "here the grid of button"
        GridLayout:
            cols:4
            ToggleButton:
                id:start
                text: 'Start simulation'
                on_state:
                    if self.state == 'normal':\
                    print("aa")
                    root.test()
                    if self.state == 'normal':\
                    root.stop()
            Button:
                id:next
                text: 'Next Generation'
            Button:
                id:clear
                text: 'Clear'
                on_press:
                    start.state ='normal' if start.state == 'down' else 'normal'
            Button:
                text:"Back to menu"
                on_press:
                    start.state ='normal' if start.state == 'down' else 'normal'
                on_release: 
                    root.manager.current = 'menu'
        
<RuleScreen>:
    GridLayout:
        cols:1
        Image:
            source: 'rules.jpg'
        GridLayout:
            cols: 2
            Button:
                text: 'Setting'
                on_release:
                    root.manager.current = 'settings'
            Button:
                text: 'Back to menu'
                on_release:
                    root.manager.current = 'menu'

<SettingsScreen>:
    GridLayout:
        cols: 1
        size: root.width - 100, root.height -100
        Button:
            id: fullscreen
            text: "Fullscreen off"
            on_release:
                root.fullscreen()
        Button:
            id: music
            text: "Music on"
            on_release:
                root.music()
        Button:
            text: 'Back to menu'
            on_press:                
                root.manager.current = 'menu'

我试着放一个for循环，但是没有成功，我试着把“Jeu”的类从Screen改为GridLayout，它不允许启动程序。我只想要一个切换按钮的网格10x10是一个好的开始。
我很抱歉的英语水平，它不是我的主要语言，所以可能有我的代码中的法语。此外，我使用thonny代码，因为我懒，它的程序学校让我们安装。提前感谢的帮助。