如何在 python/kivy 应用程序中打印所有 textinputs 值，由 for 循环添加？

Question

我使用 for 循环在 Python3/kivy 应用程序中添加了一些 TextInputs。单击按钮后，我需要获取所有更新的值：

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.textinput import TextInput
from kivy.uix.button import Button
class app(App):
    def build(self):
        self.box=BoxLayout(orientation='vertical')
        for n in range(5):
            self.box.add_widget(TextInput())
        def doet(instance):
            print('values: ')
            #print all TextInputs values
        self.box.add_widget(Button(text='DOET',on_press=doet))
        return self.box
app().run()

Answer 1

    def doet(instance):
        print('values: ')
        # for loop:
        for t in instance.parent.children:
            if isinstance(t, kivy.uix.textinput.TextInput):
                print(t.text)

        # using comprehension
        print('
'.join([t.text for t in instance.parent.children if t in instance.parent.children]))