Python Turtle繪製動態時鐘

# -*-coding=utf-8

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，建立表針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乙個頂點。
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乙個頂點。將與第乙個頂點相連。
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")
# 建立三個表針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 = ["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():
# 繪製表針的動態顯示
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)
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，並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()

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