小编Ale*_*120的帖子

我想制作一个程序，输入一些字母，并实时给出所有单词的组合，但我只能显示一些，因为我不知道如何使用多行。我已经很长时间没有使用 kivy 了。很久。有人可以帮我吗？

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.label import Label
from kivy.uix.textinput import TextInput
from kivy.uix.button import Button
from kivy.uix.floatlayout import FloatLayout
import itertools



class Screen(BoxLayout):  

    def __init__(self, **kwargs ):
        super(Screen, self).__init__(**kwargs)
        self.orientation = "vertical"
        cuvinte = " "
        boxlayout2 = BoxLayout()
        button = Button()
        txt_instructions = Label(text = "Introduce your letters without any spaces between them")
        self.add_widget(txt_instructions)
        my_user_input = TextInput()
        boxlayout2.add_widget(my_user_input)
        self.add_widget(boxlayout2)   
        my_output = Label(halign = 'center')        
        self.add_widget(my_output)
        def callback(instance, value):
            cuvinte = " …