Kivy规则和属性

Question

我在ModuleLayout中应用ModuleMaker规则时尝试指定InputMaker Button的文本。但是，当我运行程序时，没有文字出现（即＃34; Yo＆＃34;）。来源似乎工作正常，但文字不是。

   <InputMaker@Button>:
        text: self.text
        pos: self.pos
        size: self.size
        background_normal:'./images/modone.png'

    <ModuleMaker>:
        size: 150, 150
        source: self.source
        text: self.text

        canvas:
            Ellipse:
                pos: self.pos
                size: self.size
                source: self.source
        InputMaker:
            id: btnone
            text: self.text
            pos: self.parent.pos



    <ModuleLayout>:
        moduleone: one
        moduletwo: two
        modulethree: three

        ModuleMaker:
            id: one
            center_y: root.center_y
            x: root.x +300
            source: './images/modone.png'
            text: "YO"

        ModuleMaker:
            id: two
            center_y: root.center_y
            x: root.x+400
            source: './images/modtwo.png'

        ModuleMaker:
            id: three
            center_y: root.center_y
            x: root.x+500
            source: './images/modthree.png'

Answer 1

当您确实要绑定到root.text时，您的InputMaker规则会引用self.text。