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我正在尝试创建一个类，允许您拥有一个可以在 Windows 中个性化的 MenuBar。这没什么特别的，因为我是编码新手。我正在尝试不同的方法来更改级联按钮后面标签的背景，但我只能更改按钮。

from tkinter import *
TESTING = True
root = Tk()
root.attributes('-fullscreen',True)
class menubar():
    """You can use this to create a menu bar
    There are some functions:
    ButtonCascadeAdd: Lets you create a cascade button to which you will be able to add more buttons with 
    AddButtons function
    AddButtons: just adds buttons to the cascades. you can chose cascades changing the input number from 
    0 to 9
    Soon will be added color switch and others althought you can already do those things by yourself 
    since every btns[] object is a tkinter.Menubutton()"""
    global labelframe
    global contx
    global btns
    contx = 0
    labelframe = LabelFrame(root)
    btns = [Menubutton(labelframe) for i in range(10)]

    def place(self, width = 300,height = 30,rely=0):
        labelframe.place(width=width, height=height, rely=rely)

    def ButtonCascadeAdd(self,text = "btns[",tearoff = 0):
        """Adds a cascade button.
        You can pass in text to change the button title default is the name of the button in the code
        so maybe it will prove useful to leave it like that for develop purpose.
        You cant add a command to that from here.
        If you need a  button with a command and not a cascade look aat the FunctionButtonAdd function"""
        global contx
        if text == "btns[":
            text = text+str(contx)+"]"
        if contx == 10:
            print("Max number of buttons exceeded the program will be stopped")
            exit()
        b = btns[contx]
        b.config(text = text)
        b.pack(side=LEFT)
        b.menu = Menu(b, tearoff=tearoff)
        b["menu"] = b.menu
        labelframe.update()
        contx += 1
        print(contx)

    def maincolor(self,bg = "light green",fg = "black",activebg = "green",activefg = "dark blue"):
        global contx
        for x in range(contx):
            btns[x].config(bg=bg, fg=fg, activebackground=activebg, activeforeground=activefg)
            btns[x].menu.config(bg = "black",fg = "white")

        labelframe.config(bg=bg)

def doNothing():
    print("Doing Nothing ^^")
if TESTING ==   True:
    m = menubar()
    m.place(width = 1980,height = 20)
    m.ButtonCascadeAdd()
    m.ButtonCascadeAdd()
    btns[0].menu.add_command(label="test")
    #print(dir(btns[0].menu))
    m.maincolor()
    root.mainloop()
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