from tkinter import *import randomimport timeclass Ball: def __init__(self,canvas,color):#初始化函数，画布和颜色 self.canvas = canvas #对象赋值 self.id=canvas.create_oval(10,10,25,25,fill=color) self.canvas.move(self.id,245,100)#移动到画布中心 starts=[-3,-2,-1,1,2,3] random.shuffle(starts)#打乱 self.x=starts[0] self.y=-3 self.canvas_height=self.canvas.winfo_height()#获取画布当前高度并赋值 self.canvas_width=self.canvas.winfo_width() def draw(self): self.canvas.move(self.id,self.x,self.y) pos=self.canvas.coords(self.id)#获取当前对象的坐标 if pos[1]<=0: self.y=3 if pos[3]>=self.canvas_height: self.y=-3 if pos[0]<=0: self.x=3 if pos[2]>=self.canvas_width: self.x=-3tk=Tk()tk.title("Game")tk.resizable(0,0)#使窗口大小固定tk.wm_attributes("-topmost",1)#窗口置顶canvas=Canvas(tk,width=500,height=400,bd=0,highlightthickness=0)#无框画布canvas.pack()tk.update()
ball=Ball(canvas,'red')
while 1: ball.draw() tk.update_idletasks() tk.update() time.sleep(0.01)
posted on 2018-03-09 19:38 张仙人 阅读( ...) 评论( ...) 编辑 收藏转载于:https://www.cnblogs.com/zhangxianren/p/8535609.html
