#!/usr/bin/env python

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

 from tkinter import *

 import math

 import threading

 import time

 root = Tk()

 cv = Canvas(root, bg='white')

 cv.create_oval(10,10,210,210,fill='yellow')

 cv.pack()

 for num in range(12):

     angle=num*30

     x1 = abs(round(math.cos(math.pi*angle/180)*95)+110)
 

     y1 = abs(110 - round(math.sin(math.pi*angle/180)*95))

     x2 = abs(round(math.cos(math.pi*angle/180)*100)+110)

     y2 = abs(110 - round(math.sin(math.pi*angle/180)*100))

     if angle not in (0, 90, 180, 270):

         cv.create_line(x1, y1, x2, y2)

 cv.create_line(110, 10, 110, 20, width=2, fill='red') #

 cv.create_text(110, 35, text='')
 

 cv.create_line(110, 200, 110, 210, width=2, fill='red') # 6

 cv.create_text(110, 185, text='')

 cv.create_line(10, 110, 20, 110, width=2, fill='red') #

 cv.create_text(35, 110, text='')

 cv.create_line(200, 110, 210, 110, width=2, fill='red') #

 cv.create_text(185, 110, text='')

 sec_pointer = cv.create_line(110, 110, 110, 110, fill='gray')
 

 miu_pointer = cv.create_line(110, 110, 110, 110, fill='green', width=2)

 hor_pointer = cv.create_line(110, 110, 110, 110, fill='red', width=3)

 cnt_point = cv.create_oval(107, 107, 113, 113, fill='black')

 time_struct = time.localtime()

 hour = time_struct.tm_hour - 12 if time_struct.tm_hour > 12 else time_struct.tm_hour

 _min = time_struct.tm_min

 sec = time_struct.tm_sec

 init_sec = sec*6

 init_miu = _min*6 + sec*6/60

 init_hor = hour * 30 + _min * 30/3600*60 + sec * 30/3600

 def draw_pointer():

     sec = 90 - init_sec

     miu = 90 - init_miu

     hor = 90 - init_hor

     try:

         while True:

             x1 = abs(round(math.cos(math.pi*sec/180)*90)+110)

             y1 = abs(110 - round(math.sin(math.pi*sec/180)*90))

             x2 = abs(round(math.cos(math.pi*miu/180)*70)+110)

             y2 = abs(110 - round(math.sin(math.pi*miu/180)*70))

             x3 = abs(round(math.cos(math.pi*hor/180)*36)+110)

             y3 = abs(110 - round(math.sin(math.pi*hor/180)*36))

             cv.coords(sec_pointer, 110, 110, x1, y1)

             cv.coords(miu_pointer, 110, 110, x2, y2)

             cv.coords(hor_pointer, 110, 110, x3, y3)

             if sec == -180:

                 sec = 180

             if miu == -180:

                 miu = 180

             if hor == -180:

                 hor = 180

             sec -=  6

             miu -= 6/60

             hor -= 30/3600

             time.sleep(1)

     except RuntimeError as e:

         exit(0)

 td = threading.Thread(target=draw_pointer,).start()

 root.mainloop()

canvas部件使用方法參考地址：https://www.runoob.com/python/python-tk-canvas.html