The second stage of the fun-learning Python pinball game

Now, according to the "Fun learning python--teach children to learn programming" content, to let the ball move up.

from tkinter import *import randomimport time# Create Ball class class ball:     def __init__ (Self,canvas,color):                                   #初始化函数 with canvas and color parameters         self.canvas  = canvas                                           #把参数canvas赋值给对象变量canvas          self.id = canvas.create_oval (10,10,25,25,fill=color)           #创建椭圆, upper-left and lower-right XY coordinates, returns the id        self.canvas.move representing the graph (self.id, 245,100)                              #把画好的椭圆形移动的画布中心, graphics with ID     def draw (self):                                                     #定义画图动作          self.canvas.move (self.id,0,-1)                                  #垂直方向向上移动一个像素, horizontal orientation       #创建游戏的桌布tk  = tk ()                                                                #用Tk () class to create a Tk object, It is a basic window on which you can add something else tk.title ("Game")                                                         #给Tk对象窗口加一个标题tk. Resizable (0,0)                                                        #tk窗口大小不可调整tk. Wm_attributes ("-topmost", 1)                                          #告诉tkinter把窗口放到最前面canvas  = canvas (TK, width=500,heigh=400,bd=0,highlightthickness=0)     #Canvas是一个画布类canvas. Pack ()                                                           # Adjusts its own size according to the width height parameter specified in the previous line tk.update () #画一个红色的球ball  = ball (canvas, ' red ')                                                #用Ball类在画布上画一个红色的球 # main loop, let Tkinter constantly re-painting the Screen While 1:    ball.draw ()                                                          #调用Ball类的作画函数     tk.update_idletasks ()                                               #updata_idletasks和updata这两个命令     tk.update ()                                                         #让tkinter快一点把画布上的东西画出来      time.sleep (0.01)                                                   # Delay to slow down the animation effect

The second stage of the fun-learning Python pinball game