在tkinter中，有没有办法销毁从一个类到另一个类的函数标签？

import tkinter as tk

class ClassA:
    def __init__(self, root):
        self.root = root
        self.label = tk.Label(root, text="Hello, Class A")
        self.label.pack()
        self.button = tk.Button(root, text="Switch", command=self.switch_to_class_b)
        self.button.pack()

    def switch_to_class_b(self):
        self.label.destroy()  # 销毁标签
        ClassB(self.root)  # 切换到ClassB

class ClassB:
    def __init__(self, root):
        self.root = root
        self.label = tk.Label(root, text="Hello, Class B")
        self.label.pack()
        self.button = tk.Button(root, text="Switch", command=self.switch_to_class_a)
        self.button.pack()

    def switch_to_class_a(self):
        self.label.destroy()  # 销毁标签
        ClassA(self.root)  # 切换到ClassA

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