点击换色，画圆

[python]代码库

from turtle import *
ht()
tracer(0)
x1=-400   
y1=-400   
宽=200
高=200

colorall=['red','orange','yellow','green','cyan','blue','purple']
n=0

def brick(mycolor):
    fillcolor(mycolor)
    pu()
    goto(x1,y1)
    pd()
    begin_fill()
    for i in range(2):
        fd(宽)
        lt(90)
        fd(高)
        lt(90)
    end_fill()
    update()

brick(colorall[n]) 
def draw(x,y):
    if x>x1 and x<x1+宽 and y>y1 and y<y1+高:
        global n
        n=n+1
        if n>=len(colorall):
            n=0
        brick(colorall[n])
    else:
        pu()
        goto(x,y)
        pd()
        dot(20,colorall[n])

onscreenclick(draw)
done()