在函数中更改 Tkinter 按钮的颜色

Question

我想在按下不同按钮时更改按钮的颜色。下面的代码重新创建了属性错误。

理想情况下，解决方案应该能够更改按钮的所有属性（请参阅尝试的状态更改），但我没有将其放在标题中，因为我不知道“属性”是否是正确的词。

import Tkinter

def tester():

    class window(Tkinter.Tk):
        def __init__(self,parent):
            Tkinter.Tk.__init__(self,parent)
            self.parent = parent
            self.initialize()

        def initialize(self):
            self.grid()
            button1 = Tkinter.Button(self,text=u"Button")
            button1.grid(padx=5,pady=5)

            button2 = Tkinter.Button(self,text=u"Change",command=self.colourer)
            button2.grid(column=1,row=0,pady=5)  

            button3 = Tkinter.Button(self,text=u"Disabled",state='disabled')
            button3.grid(column=1,row=0,pady=5)                     

        def colourer(self):
            self.button1.configure(bg='red')
#           self.button1.config(bg='red')  -- this gives same error
#           self.button3.configure(state='normal')  -- as does this
    if __name__ == "__main__":
        app = window(None)
        app.title('Tester')
        app.mainloop()

tester()

这里建议的所有方法都会给出相同的错误：Changing colour of buttons in tkinter

谢谢

Answer 1

问题的根源在于您没有定义self.button。您需要为该变量赋值：

self.button = Tkinter.Button(...)

Answer 2

1. 你需要给self.button1 而declaring
2. 如果您看到网格，您为按钮 2 和按钮 3 提供了相同的列名称，因此它们相互重叠

试试这个

import Tkinter

def tester():

    class window(Tkinter.Tk):
        def __init__(self,parent):
            Tkinter.Tk.__init__(self,parent)
            self.parent = parent
            self.initialize()

        def initialize(self):
            print self.grid()
            self.button1 = Tkinter.Button(self,text=u"Button")
            self.button1.grid(padx=5,pady=5)

            self.button2 = Tkinter.Button(self,text=u"Change",command=self.colourer)
            self.button2.grid(column=1,row=0,pady=5)

            self.button3 = Tkinter.Button(self,text=u"Disabled",state='disabled')
            self.button3.grid(column=2,row=0,pady=5)



        def colourer(self):
            self.button1.configure(bg='red')
#           self.button1.config(bg='red')  -- this gives same error
#           self.button3.configure(state='normal')  -- as does this
    if __name__ == "__main__":
        app = window(None)
        app.title('Tester')
        app.mainloop()

tester()