import turtle  
from datetime import *  
   
# 抬起畫筆，向前運動一段距離放下  
def Skip(step):  
    turtle.penup()  
    turtle.forward(step)  
    turtle.pendown()  
   
def mkHand(name, length):  
    # 註冊Turtle形狀，建立錶針Turtle  
    turtle.reset()  
    Skip(-length * 0.1)  
    # 開始記錄多邊形的頂點。當前的烏龜位置是多邊形的第一個頂點。  
    turtle.begin_poly()  
    turtle.forward(length 
 
* 1.1)  
    # 停止記錄多邊形的頂點。當前的烏龜位置是多邊形的最後一個頂點。將與第一個頂點相連。  
    turtle.end_poly()  
    # 返回最後記錄的多邊形。  
    handForm = turtle.get_poly()  
    turtle.register_shape(name, handForm)  
   
def Init():  
    global secHand, minHand, hurHand, printer  
    # 重置Turtle指向北  
    turtle.mode("logo")  
    # 建立三個錶針Turtle並初始化  
 

    mkHand("secHand", 135)  
    mkHand("minHand", 125)  
    mkHand("hurHand", 90)  
    secHand = turtle.Turtle()  
    secHand.shape("secHand")  
    minHand = turtle.Turtle()  
    minHand.shape("minHand")  
    hurHand = turtle.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.Turtle()  
    # 隱藏畫筆的turtle形狀  
    printer.hideturtle()  
    printer.penup()  
      
def SetupClock(radius):  
    # 建立表的外框  
    turtle.reset()  
    turtle.pensize(7)  
    for i in range(60):  
        Skip(radius)  
        if i % 5 == 0:  
            turtle.forward(20)  
            Skip(-radius - 20)  
             
            Skip(radius + 20)  
            if i == 0:  
                turtle.write(int(12), align="center", font=("Courier", 14, "bold"))  
            elif i == 30:  
                Skip(25)  
                turtle.write(int(i/5), align="center", font=("Courier", 14, "bold"))  
                Skip(-25)  
            elif (i == 25 or i == 35):  
                Skip(20)  
                turtle.write(int(i/5), align="center", font=("Courier", 14, "bold"))  
                Skip(-20)  
            else:  
                turtle.write(int(i/5), align="center", font=("Courier", 14, "bold"))  
            Skip(-radius - 20)  
        else:  
            turtle.dot(5)  
            Skip(-radius)  
        turtle.right(6)  
          
def Week(t):     
    week = ["Mon", "Tues", "Wed",  
            "Thu", "Fri", "Sat", "Sun"]  
    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():  
    # 繪製錶針的動態顯示  
    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)  
    minHand.setheading(6 * minute)  
    hurHand.setheading(30 * hour)  
      
    turtle.tracer(False)   
    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.home()  
    turtle.tracer(True)  
   
    # 100ms後繼續呼叫tick  
    turtle.ontimer(Tick, 100)  
   
def main():  
    # 開啟/關閉龜動畫，併為更新圖紙設定延遲。  
    turtle.tracer(False)  
    Init()  
    SetupClock(160)  
    turtle.tracer(True)  
    Tick()  
    turtle.mainloop()  
   
if __name__ == "__main__":  
    main()