kivy 窗口大小固定&设置窗口大小

参考：https://www.pythonheidong.com/blog/article/183914/

from kivy.config import Config
from kivy.app import App
#设置窗口大小不变，必须添加到最前面
Config.set('graphics','resizable',False) 
from kivy.uix.floatlayout import FloatLayout
#设置窗口大小
from kivy.core.window import Window
Window.size = (1440, 900)

class SizeFloat(FloatLayout):
    def __init__(self, **kwargs):
        super().__init__(**kwargs)
class SizeApp(App):
    def build(self):
        return SizeFloat()
if __name__ == '__main__':
    SizeApp().run()