通过tkinter 0中另一个类的方法将标签添加到frame类

import tkinter as tk

root = tk.Tk()

frame = tk.Frame(root)
frame.pack()

label = tk.Label(frame, text="这是一个标签")

frame.add(label)

import tkinter as tk

class MyFrame(tk.Frame):
    def __init__(self, master=None):
        super().__init__(master)
        self.pack()
        self.create_widgets()

    def create_widgets(self):
        label = tk.Label(self, text="这是一个标签")
        label.pack()

root = tk.Tk()
frame = MyFrame(root)
frame.pack()

root.mainloop()