如何使用面向对象的模块化类结构在tkinter LabelFrame中添加小部件

如前所述（），我正在尝试将面向对象的方法应用于TkinterGUI结构

我正在尝试放置小部件，如LabelFrame中下面的Radiobutton：

import tkinter as tk

root = tk.Tk()
root.title("GUI")
root.geometry('640x480+200+200')

lf0 = tk.LabelFrame(root, text='0 Label Frame', height=100, width=620)
lf0.grid(row=0, column=0, padx=10)

lf1 = tk.LabelFrame(root, text='1 Label Frame', height=100, width=620)
lf1.grid(row=1, column=0, padx=10)

lf2 = tk.LabelFrame(root, text='2 Label Frame')
lf2.grid(row=2, column=0, padx=10)

rb1 = tk.Radiobutton(lf2, text='set')
rb1.grid(padx=287, pady=29, sticky='ew')

root.mainloop()

下面的结果是类似的GUI布局，但我无法使用这种方法将小部件放置在标签框架中

import tkinter as tk


class RadioBut(tk.Radiobutton):
    def __init__(self, parent, txt, r, c, *args, **kwargs):
    #  def __init__(self, parent, loc, txt, r, c, *args, **kwargs):
        tk.Radiobutton.__init__(self, parent, *args, **kwargs)
        self.parent = parent
        # self.loc = loc
        rb = tk.Radiobutton(parent, text=txt)
        # rb = tk.Radiobutton(self.loc, text=txt)
        rb.grid(row=r, column=c, sticky='ew')


class LablFrm(tk.LabelFrame):
    def __init__(self, parent, txt, r, c, *args, **kwargs):
        tk.LabelFrame.__init__(self, parent, *args, **kwargs)
        self.parent = parent
        self.label = tk.LabelFrame(parent, text=txt, height=100, width=620)
        self.label.grid(row=r, column=c, padx=10)


class MainApplication(tk.Frame):
    def __init__(self, parent, *args, **kwargs):
        tk.Frame.__init__(self, parent, *args, **kwargs)
        self.parent = parent
        parent.title("GUI")
        parent.geometry('640x480+200+200')
        self.widgets()

    def widgets(self):
        LablFrm(self.parent, '0 Label Frame', 0, 0)
        LablFrm(self.parent, '1 Label Frame', 1, 0)
        LablFrm(self.parent, '2 Label Frame', 2, 0)
        RadioBut(self.parent, 'set', 3, 0)
        # lf2 = LablFrm(self.parent, '2 Label Frame', 2, 0)
        # rb2 = RadioBut(self.parent, lf2, 'set', 2, 0)
        ## rb2 = tk.Radiobutton(lf2, text='set')
        ## rb2.grid(row=0, column=0)


if __name__ == "__main__":

    root = tk.Tk()
    MainApplication(root)
    root.mainloop()

---

我曾希望传递一个位置变量（如上面注释的行中所示）可能会起作用。即使是双重评论的方法也失败了。我想，除了其他一些事情外，LablFrm的定义有些扭曲…

您将小部件放在了错误的容器中（

tk.Frames

）

我没有检查整个程序，但是这个修改过的应用程序类现在将小部件放置在自定义设计的小部件中：

class MainApplication(tk.Frame):
    def __init__(self, parent, *args, **kwargs):
        self.parent = parent                               # save a reference to parent
        super().__init__(self.parent, *args, **kwargs)     # use super() and place inside parent
                                                           # your other widget classes should also be modified this way
        self.widgets()
        self.pack()                                        # use geometry manager pack on self (tk.Frame subclass)

    def widgets(self):
        LablFrm(self, '0 Label Frame', 0, 0).grid(row=0, column=0)  # place inside self, and apply geometry manager grid
        LablFrm(self, '1 Label Frame', 1, 0).grid(row=0, column=1)  # same
        LablFrm(self, '2 Label Frame', 2, 0).grid(row=0, column=2)  # same
        RadioBut(self, 'set', 3, 0).grid(row=0, column=3)           # same
        lf2 = LablFrm(self, '2 Label Frame', r=4, c=0)              # same
        lf2.grid(row=1, column=0)                                   # apply geometry manager grid
        rb2 = RadioBut(self, lf2, text='set', r=4, c=1)             # same
        rb2.grid(row=1, column=1)                                   # apply geometry manager grid
        rb22 = tk.Radiobutton(lf2, text='set')                      # place inside lf2 widget
        rb22.grid(row=2, column=2)                                  # apply geometry manager grid


if __name__ == "__main__":

    root = tk.Tk()
    root.title("GUI")                 # avoid modifying a parent class inside a child class
    root.geometry('640x480+200+200')  # moved these 2 lines out of App
    MainApplication(root)
    root.mainloop()