专业视觉设计师，5年b端产品经理职业生涯，最近痴迷于编程,追求全栈工程师，厚积薄发。励志一个月玩转python GUI。记录下自学过程，纯属单纯的喜欢编程,与大家分享。
先来个简单的canvas动画：桌面弹力球
源码：
import tkinter
import random
root=tkinter.Tk()
root.title(“envent”)
root.geometry(“400x300+10+10”)
hb=tkinter.Canvas(root,width=400,height=300,bg="#189fff")
hb.pack()
oval = hb.create_oval(0, 0,16,16, fill=“red”,outline="")
pzzt=[0,1,1]#状态(0,1,2,3)如下,随机移动x,随机移动y
def callback(canvas=hb,canvas_w=400,canvas_h=300,r=10,state=pzzt):
zb = canvas.bbox(oval) #获取小球坐标
#—条件-----------------------
if zb[2]>=canvas_w or (zb[2]==canvas_w and zb[3]==r):#撞击右边-修改状态向左 or 撞击NE ;修改状态，向SW
state[0]=1
state[1] = random.randint(1,2)
state[2] = random.randint(1,2)
elif zb[0]<=0 or (zb[0]==0 and zb[2]==canvas_h-r):#撞击左边-修改状态向右 or 撞击SW ;修改状态，向NE
state[0]=0
state[1] = random.randint(1,3)
state[2] = random.randint(3,6)
elif zb[1]<=0 or (zb[0]==0 and zb[1]==0):#撞击上边-修改状态向下 or 撞击NW ;修改状态，向SE
state[0] = 2
state[1] = random.randint(3,6)
state[2] = random.randint(1,3)
elif zb[3]>=canvas_h or (zb[2]==canvas_w and zb[3]==canvas_h):#撞击下边-修改状态向上 or 撞击SE ;修改状态，向NW
state[0] = 3
state[1] = random.randint(1,5)
state[2] = random.randint(10,20)
# —运动-----------------------
if state[0]==0:
canvas.move(oval,state[1],-state[2]) #向右、向上、或指向NE —正负
elif state[0]==1:
canvas.move(oval,-state[1],state[2]) #向左、向下、向SW —负正
elif state[0]==2:
canvas.move(oval,state[1],state[2]) #向下、向右、指向SE —正正
elif state[0]==3:
canvas.move(oval,-state[1],-state[2]) #向上、向左、指向NW —负负
canvas.after(30,callback)
callback()
root.mainloop()