import tkinter as tk

from tkinter import ttk

win=tk.Tk()

win.geometry('450x500')

tab=ttk.Notebook(win)

frame1=tk.Frame(tab,bg='red')

tab1=tab.add(frame1,text = "第一部分")

frame2 = tk.Frame(tab, bg = "blue")

tab2 = tab.add(frame2, text = "第二部分")

frame3= tk.Frame(tab, bg = "green")

tab3 = tab.add(frame3, text = "第三部分")

tab.pack(expand = True, fill = tk.BOTH)

win.resizable(0, 0)

win.mainloop()