python_today 11\22

在python中实现平抛运动的演示

代码如下

# coding: utf-8

from Tkinter import *

from time import sleep

root = Tk()

cv = Canvas(root, width=600, height=600)

cv.pack()

ball = cv.create_oval(0,10,20,30,fill='red')

x = 10

y = 20

v_y = 0

v_x = 15

t = 0.1

while True:

    v_y = v_y + 9.8 * t

    new_y = y + v_y * t

    new_x = x + v_x * t

    del_x = v_x * t

    del_y = v_y * t

    cv.move(ball,del_x,del_y)

    cv.update()

    y = new_y

    x = new_x

    if x >=590 or x <= 10:

          v_x = - v_x

    if y >= 590:

          v_y = - v_y

代码不会输入,  

链接在这: https://pan.baidu.com/s/1hrY5BEG 

密码: v689