# -*- coding:utf-8 -*-

import tkinter

root=tkinter.Tk()
# —————— 分割线 —————— #
label_1=tkinter.Label(root,bg="red")
label_1.place(relx=0.5,rely=0.5,relwidth=0.75,relheight=0.75,anchor=tkinter.CENTER)
# —————— 分割线 —————— #
label_2=tkinter.Label(root,bg="yellow")
label_2.place(relx=0.5,rely=0.5,relwidth=0.55,relheight=0.55,anchor=tkinter.CENTER)
# —————— 分割线 —————— #
label_3=tkinter.Label(root,bg="blue")
label_3.place(relx=0.5,rely=0.5,relwidth=0.25,relheight=0.25,anchor=tkinter.CENTER)

# —————— 分割线 —————— #

root.mainloop()