實現效果

如圖所示。

基本思路

自定義shape，畫出時針、分針、秒針。通過register_shape()函數。

指針的位置通過shape類setheading()函數進行設置。

獲取系統(tǒng)時間作為當前時間，datetime.today()。

利用ontimer()函數定義定時器事件，觸發(fā)屏幕更新。

利用write()函數在屏幕上顯示文本。

完整代碼

參考了turtle-example實現。

#!/usr/bin/env python #encoding:utf-8 # # [SNIPPET_NAME: tClock] # [SNIPPET_CATEGORIES: PyTurtle] # [SNIPPET_DESCRIPTION: Use turtle to draw a clock.] # [SNIPPET_DOCS: http://docs.python.org/library/turtle.html] # [SNIPPET_AUTHOR: Grant Bowman <grantbow@ubuntu.com>] # [SNIPPET_LICENSE: PSF] # Code authorship from http://python.org/download/releases/2.6.4/""" turtle-example-suite:tdemo_clock.pyEnhanced clock-program, showing date and time------------------------------------Press STOP to exit the program!------------------------------------ """ from turtle import * from datetime import datetimemode("logo") # 向上（北），正角度為順時針thisday = 0 thisecond = 0second_hand = Turtle() minute_hand = Turtle() hour_hand = Turtle() writer = Turtle() writer.getscreen().bgcolor('gray90') writer.color("gray20", "gray20")def jump(distanz, winkel=0):penup()right(winkel)forward(distanz)left(winkel)pendown() ''' laenge 指針長度 width 指針寬度 spitze 箭頭邊長''' def hand(laenge, spitze, width):lt(90)fd(width)rt(90)fd(laenge*1.15)rt(90)fd(width * 2)rt(90)fd(laenge*1.15)rt(90)fd(width)rt(90)fd(laenge*1.15)rt(90)fd(spitze/2.0)lt(120)fd(spitze)lt(120)fd(spitze)lt(120)fd(spitze/2.0)def make_hand_shape(name, laenge, spitze, width):reset()jump(-laenge*0.15) # 指針靠近表盤中心的末端，但不與圓心重合begin_poly()hand(laenge, spitze, width)end_poly()hand_form = get_poly()register_shape(name, hand_form)def clockface(radius):reset()# 外圓周pensize(2)colors = ['green3', 'green2', 'gray98']# 從外向內fillfor i in range(3):jump(radius+7+(2-i)*4,90)fillcolor(colors[i])begin_fill()circle(radius+7+(2-i)*4, steps=1000)end_fill()jump(-radius-7-(2-i)*4,90)# 刻度pensize(7)color("gray60", "gray60")# 經驗值params = [-35, -40, -40, -25, -15, -5, 0, -5, -15, -25, -40, -40] #距離angles = [0, -15, -25, -40, -35, -30, 0, 30, 35, 40, 25, 15] # 角度for i in range(60):jump(radius)if i % 5 == 0:fd(-15)# 下面三行寫表盤數字jump(params[i/5], angles[i/5])write(12 if i/5==0 else i/5, align="center", font=("Courier", 20, "bold"))jump(params[i/5], 180+angles[i/5])jump(-radius+15)else:dot(3)jump(-radius)rt(6)def setup():global second_hand, minute_hand, hour_hand, writer# 自定義形狀make_hand_shape("hour_hand", 90, 25, 5)make_hand_shape("minute_hand", 130, 25, 3)make_hand_shape("second_hand", 140, 10, 1)# 畫表盤clockface(160)hour_hand.shape("hour_hand")hour_hand.color("gray30", "gray12")minute_hand.shape("minute_hand")minute_hand.color("gray40", "blue")second_hand.shape("second_hand")second_hand.color("red4", "red4")for hand in hour_hand, minute_hand, second_hand:hand.resizemode("user")hand.shapesize(1, 1, 1)hand.speed(1)ht()writer.ht()writer.pu()writer.bk(85)def wochentag(t):wochentag = ["星期一", "星期二", "星期三","星期四", "星期五", "星期六", "星期日"]return wochentag[t.weekday()]def get_mmdd(z):m = z.montht = z.dayreturn "%d月%d日" % (m, t)def get_yyyy(z):j = z.yearreturn "%d" % (j)def write_date(t):global thisdayx = t.dayif thisday != x:thisday = xwriter.clear()writer.home()writer.forward(65)writer.write(wochentag(t),align="center", font=("Courier", 16, "bold"))writer.back(150)writer.write(get_mmdd(t),align="center", font=("Courier", 16, "normal"))writer.back(15)writer.write(get_yyyy(t),align="center", font=("Courier", 10, "normal"))writer.forward(100)def tick():global thisecondt = datetime.today()if thisecond != t.second:thisecond = t.second#print tsekunde = t.second + t.microsecond * 0.000001minute = t.minute + sekunde / 60.0stunde = t.hour + minute / 60.0tracer(False)write_date(t)tracer(True)hour_hand.setheading(30 * stunde)minute_hand.setheading(6 * minute)second_hand.setheading(6 * sekunde)ontimer(tick, 10)def main():tracer(False)setup()tracer(True)tick()return "EVENTLOOP"if __name__ == "__main__":msg = main()print msgmainloop()

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