根据窗口小部件大小停止调整Tkinter帧的大小

import tkinter as tk

root = tk.Tk()

frame = tk.Frame(root, width=300, height=200)
frame.grid_propagate(0)  # 禁用自动调整大小

label = tk.Label(frame, text="Hello, world!")
label.pack()

frame.pack()

root.mainloop()

import tkinter as tk

root = tk.Tk()

frame = tk.Frame(root, width=300, height=200)
frame.place(x=0, y=0, width=300, height=200)

label = tk.Label(frame, text="Hello, world!")
label.pack()

root.mainloop()