Python Tkinter模块实现时钟功能应用示例
发布时间：2020-12-16 21:08:39 所属栏目：Python 来源：网络整理
导读：本篇章节讲解Python Tkinter模块实现时钟功能。供大家参考研究具体如下： 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,maste
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本篇章节讲解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-8
from Tkinter import *
import _tkinter
import math
import time
from threading import Thread
class 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,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,width=width)
return id
def _getPosByRadAndRadius(self,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:
pass
if __name__ == '__main__':
root = Tk()
root.title('www.aspzz.cn 时钟')
clock = Clock(root,200,400,150)
clock.drawClockDial()
clock.run()
root.mainloop()
待解决的bug: 关闭程序的时候,会出现如下的错误:
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