Python Tkinter模块实现时钟功能应用示例

本文实例讲述了Python Tkinter模块实现时钟功能。分享给大家供大家参考，具体如下：

本机测试效果:

完整代码:

# coding=utf-8from Tkinter import *import _tkinterimport mathimport timefrom threading import Threadclass Clock:  def __init__(self, master, x, y, width, height, radius):    '''    :param master: 父窗口    :param x: 时钟中心点的x坐标    :param y: 时钟中心点的y坐标    :param width: 画布的宽度    :param height: 画布的高度    :param radius: 时钟钟盘的半径    '''    self.centerX = x    self.centerY = y    self.radius = radius    self.canvas = Canvas(master, width=width, height=height) # 画布    self.canvas.pack()    self.canvas.create_oval(      x - radius,      y - radius,      x + radius,      y + radius) # 画钟框    self.id_lists = []    self.hourHandRadius = self.radius * 1.0 / 4  # 指针长度    self.minHandRadius = self.radius * 2.0 / 3  # 分针长度    self.secHandRadius = self.radius * 4.0 / 5  # 秒针长度    self.timeVar = StringVar()    # self.timeVar.set('')    self.timeLabel = Label(self.canvas.master, textvariable=self.timeVar)    self.timeLabel.pack(side=BOTTOM)    #self.canvas.master.protocol('WM_DELETE_WINDOW', self.canvas.master.destroy)  def __del__(self):    self._deleteItems(self.id_lists)  # 绘制时钟钟盘  def drawClockDial(self):    # 绘制钟盘上的数字1-12    r = self.radius - 15    for i in range(1, 13):      rad = 2 * math.pi / 12 * i      x = self.centerX + math.sin(rad) * r      y = self.centerY - math.cos(rad) * r      id = self.canvas.create_text(x, y, text=str(i))      self.id_lists.append(id)    # 绘制钟盘上的刻度    r1 = self.radius - 5    r2 = self.radius    for i in range(1, 61):      rad = 2 * math.pi / 60 * i      x1, y1 = self._getPosByRadAndRadius(rad, r1)      x2, y2 = self._getPosByRadAndRadius(rad, r2)      id = self.canvas.create_line(x1, y1, x2, y2)      self.id_lists.append(id)  # 显示时间  def showTime(self, tm):    hour = tm.tm_hour % 12    min = tm.tm_min    sec = tm.tm_sec    sec_rad = 2 * math.pi / 60 * sec    min_rad = 2 * math.pi / 60 * (min + sec / 60.0)    hour_rad = 2 * math.pi / 12 * (hour + min / 60.0)    timeStr = '当前时间: %d-%02d-%02d %02d:%02d:%02d' % (      tm.tm_year, tm.tm_mon, tm.tm_mday, hour, min, sec)    self.timeVar.set(timeStr)    hour_id = self._drawLine(hour_rad, self.hourHandRadius, 6)    min_id = self._drawLine(min_rad, self.minHandRadius, 4)    sec_id = self._drawLine(sec_rad, self.secHandRadius, 3)    return (hour_id, min_id, sec_id)  def run(self):    def _run():      while True:        tm = time.localtime()        id_lists = self.showTime(tm)        self.canvas.master.update()        time.sleep(1)        self._deleteItems(id_lists)    thrd = Thread(target=_run) # 创建新的线程    thrd.run() # 启动线程  def _drawLine(self, rad, radius, width):    x, y = self._getPosByRadAndRadius(rad, radius)    id = self.canvas.create_line(      self.centerX, self.centerY, x, y, width=width)    return id  def _getPosByRadAndRadius(self, rad, radius):    x = self.centerX + radius * math.sin(rad)    y = self.centerY - radius * math.cos(rad)    return (x, y)  def _deleteItems(self, id_lists):    for id in id_lists:      try:        self.canvas.delete(id)      except BaseException:        passif __name__ == '__main__':  root = Tk()  root.title('www.jb51.net 时钟')  clock = Clock(root, 200, 200, 400, 400, 150)  clock.drawClockDial()  clock.run()  root.mainloop()