从 Python tkinter Frame 继承包功能

Question

下面是代码：

import tkinter as tk

def click(event):
    print (event.widget.winfo_name())

sq=250
win = tk.Tk()

topFrame = tk.Frame(win)
middleFrame = tk.Frame(win)
bottomFrame = tk.Frame(win)

top_leftFrame = tk.Frame(topFrame, height=sq, width=sq, bg="sienna")
top_middleFrame = tk.Frame(topFrame, height=sq, width=sq, bg="chocolate")
top_rightFrame = tk.Frame(topFrame, height=sq, width=sq, bg="peru")

middle_leftFrame = tk.Frame(middleFrame, height=sq, width=sq, bg="sandy brown")
middle_middleFrame = tk.Frame(middleFrame, height=sq, width=sq, bg="salmon")
middle_rightFrame = tk.Frame(middleFrame, height=sq, width=sq, bg="rosy brown")

bottom_leftFrame = tk.Frame(bottomFrame, height=sq, width=sq, bg="plum")
bottom_middleFrame = tk.Frame(bottomFrame, height=sq, width=sq, bg="violet")
bottom_rightFrame = tk.Frame(bottomFrame, height=sq, width=sq, bg="purple")

topFrame.pack(side=tk.TOP)
middleFrame.pack(side=tk.TOP)
bottomFrame.pack(side=tk.TOP)

top_leftFrame.pack(side=tk.LEFT)
top_middleFrame.pack(side=tk.LEFT)
top_rightFrame.pack(side=tk.LEFT)

middle_leftFrame.pack(side=tk.LEFT)
middle_middleFrame.pack(side=tk.LEFT)
middle_rightFrame.pack(side=tk.LEFT)

bottom_leftFrame.pack(side=tk.LEFT)
bottom_middleFrame.pack(side=tk.LEFT)
bottom_rightFrame.pack(side=tk.LEFT)

win.bind("<Button-1>", click)
win.mainloop()

因为我无法获得单击的小部件的名称，所以我想通过使用新方法/属性创建新类来对其进行排序。但是，除了 pack 的功能之外，一切正常。

import tkinter as tk

class Frame_ext(tk.Frame):
    def __init__(self, master=None, string=None, cnf={}, **kw):
        super().__init__(master=None, cnf={}, **kw)
        self.string = string

def click(event):
    print (event.widget.string)

sq=250
win = tk.Tk()

topFrame = tk.Frame(win)
middleFrame = tk.Frame(win)
bottomFrame = tk.Frame(win)

top_leftFrame = Frame_ext(topFrame, height=sq, width=sq, bg="sienna", string="1")
top_middleFrame = Frame_ext(topFrame, height=sq, width=sq, bg="chocolate", string="2")
top_rightFrame = Frame_ext(topFrame, height=sq, width=sq, bg="peru", string="3")
    
middle_leftFrame = Frame_ext(middleFrame, height=sq, width=sq, bg="sandy brown", string="4")
middle_middleFrame = Frame_ext(middleFrame, height=sq, width=sq, bg="salmon", string="5")
middle_rightFrame = Frame_ext(middleFrame, height=sq, width=sq, bg="rosy brown", string="6")

bottom_leftFrame = Frame_ext(bottomFrame, height=sq, width=sq, bg="plum", string="7")
bottom_middleFrame = Frame_ext(bottomFrame, height=sq, width=sq, bg="violet", string="8")
bottom_rightFrame = Frame_ext(bottomFrame, height=sq, width=sq, bg="purple", string="9")

topFrame.pack(side=tk.TOP)
middleFrame.pack(side=tk.TOP)
bottomFrame.pack(side=tk.TOP)

top_leftFrame.pack(side=tk.LEFT)
top_middleFrame.pack(side=tk.LEFT)
top_rightFrame.pack(side=tk.LEFT)

middle_leftFrame.pack(side=tk.LEFT)
middle_middleFrame.pack(side=tk.LEFT)
middle_rightFrame.pack(side=tk.LEFT)

bottom_leftFrame.pack(side=tk.LEFT)
bottom_middleFrame.pack(side=tk.LEFT)
bottom_rightFrame.pack(side=tk.LEFT)

win.bind("<Button-1>", click)
win.mainloop()

有人知道这是什么原因吗？我不确定类继承是否正确完成。 在我看来还可以。谢谢。

Answer 1

您需要将收到的master 传递给超类__init__。另外，您不需要接受或传递cnf。

class Frame_ext(tk.Frame):
    def __init__(self, master=None, string=None, **kw):
        super().__init__(master=master, **kw)
                                ^^^^^^