Kivy，python:放大或缩小窗口时动态调整文本大小

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.core.window import Window

class MyLayout(BoxLayout):
    def __init__(self, **kwargs):
        super(MyLayout, self).__init__(**kwargs)
        self.orientation = 'vertical'
        self.label = Label(text='Hello, Kivy!')
        self.add_widget(self.label)

class MyApp(App):
    def build(self):
        layout = MyLayout()
        Window.bind(on_resize=self.on_window_resize)
        return layout

    def on_window_resize(self, window, width, height):
        # 根据窗口大小调整文本大小
        self.root.label.font_size = min(width, height) / 10

if __name__ == '__main__':
    MyApp().run()