python tkinter实现屏保程序

本文实例为大家分享了pythontkinter实现屏保程序的具体代码，供大家参考，具体内容如下该

本文实例为大家分享了python tkinter实现屏保程序的具体代码，供大家参考，具体内容如下

该脚本摘录自：2014年辛星tkinter教程第二版

#!/usr/bin/env python
 
from Tkinter import *
from random import randint
 
class RandomBall(object):
 def __init__(self, canvas, screenwidth, screenheight):
 self.canvas = canvas
 self.xpos = randint(10, int(screenwidth))
 self.ypos = randint(10, int(screenheight))
 self.xspeed = randint(6, 12)
 self.yspeed = randint(6, 12)
 self.screenwidth = screenwidth
 self.screenheight = screenheight
 self.radius = randint(40, 70)
 color = lambda : randint(0, 255)
 self.color = '#%02x%02x%02x' % (color(), color(), color())
 
 def create_ball(self):
 x1 = self.xpos - self.radius
 y1 = self.ypos - self.radius
 x2 = self.xpos + self.radius
 y2 = self.ypos + self.radius
 self.itm = self.canvas.create_oval(x1, y1, x2, y2, fill=self.color,
 outline=self.color)
 
 def move_ball(self):
 self.xpos += self.xspeed
 self.ypos += self.yspeed
 if self.ypos >= self.screenheight - self.radius:
 self.yspeed = -self.yspeed
 if self.ypos <= self.radius:
 self.yspeed = abs(self.yspeed)
 if self.xpos >= self.screenwidth - self.radius or self.xpos <= self.radius:
 self.xspeed = -self.xspeed
 self.canvas.move(self.itm, self.xspeed, self.yspeed)
 
class ScreenSaver:
 def __init__(self, num_balls):
 self.balls = []
 self.root = Tk()
 w, h = self.root.winfo_screenwidth(), self.root.winfo_screenheight()
 self.root.overrideredirect(1)
 self.root.attributes('-alpha', 0.3)
 self.root.bind('<Key>', self.myquit)
 self.root.bind('<Motion>', self.myquit)
 self.canvas = Canvas(self.root, width=w, height=h)
 self.canvas.pack()
 for i in range(num_balls):
 ball = RandomBall(self.canvas, screenwidth=w, screenheight=h)
 ball.create_ball()
 self.balls.append(ball)
 self.run_screen_saver()
 self.root.mainloop()
 
 def run_screen_saver(self):
 for ball in self.balls:
 ball.move_ball()
 self.canvas.after(50, self.run_screen_saver)
 
 def myquit(self, event):
 self.root.destroy()
 
if __name__ == "__main__":
 ScreenSaver(18)

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。