from turtle import *from datetime import * def Skip(step): penup() forward(step) pendown() def mkHand(name, length): #注冊Turtle形狀，建立表針Turtle reset() #清空當前窗口，并重置位置等信息為默認值 Skip(-length*0.1) begin_poly() forward(length*1.1) end_poly() handForm = get_poly() register_shape(name, handForm)  def Init(): global secHand, minHand, hurHand, printer mode("logo")# 重置Turtle指向北 #建立三個表針Turtle并初始化 mkHand("secHand", 135) mkHand("minHand", 110) mkHand("hurHand", 90) secHand = Turtle() secHand.shape("secHand") minHand = Turtle() minHand.shape("minHand") hurHand = Turtle() hurHand.shape("hurHand") for hand in secHand, minHand, hurHand:  hand.shapesize(1, 1, 3)  hand.speed(0) #建立輸出文字Turtle printer = Turtle() printer.hideturtle() printer.penup()  def SetupClock(radius): #建立表的外框 reset() pensize(7) for i in range(60):  Skip(radius)  if i % 5 == 0:   forward(20)   Skip(-radius-20)  else:   dot(5)   Skip(-radius)  right(6)   def Week(t):  week = ["星期一", "星期二", "星期三",   "星期四", "星期五", "星期六", "星期日"] return week[t.weekday()] def Date(t): y = t.year m = t.month d = t.day return "%s %d %d" % (y, m, d) def Tick(): #繪制表針的動態顯示 t = datetime.today() second = t.second + t.microsecond*0.000001 minute = t.minute + second/60.0 hour = t.hour + minute/60.0 secHand.setheading(6*second) #設置朝向，每秒轉動6度 minHand.setheading(6*minute) hurHand.setheading(30*hour)   tracer(False) #不顯示繪制的過程，直接顯示繪制結果 printer.forward(65) printer.write(Week(t), align="center",     font=("Courier", 14, "bold")) printer.back(130) printer.write(Date(t), align="center",     font=("Courier", 14, "bold")) printer.back(50) printer.write("i_chaoren", align="center",     font=("Courier", 14, "bold")) printer.home() tracer(True)  ontimer(Tick, 1000)#1000ms后繼續調用tick def main(): tracer(False) #使多個繪制對象同時顯示 Init() SetupClock(160) tracer(True) Tick() mainloop() if __name__ == "__main__":   main()