Yok*_*tık 1 python python-turtle
它的编码从去100到0一个个像红色,蓝色,红色,蓝色半径的圆。我用 if else 做到了,但我相信我可以用更高级的方式来做到这一点,比如随机、列表或其他任何东西。你能帮忙吗?
import turtle
screen = turtle.Screen()
turtle = turtle.Turtle('turtle')
turtle.pensize(3)
turtle.pencolor('red')
def circle(x, y, r):
if r <= 0:
return
turtle.penup()
turtle.goto(0, -r)
turtle.pendown()
turtle.circle(r)
if (turtle.pencolor() == 'red'):
turtle.pencolor('blue')
else:
turtle.pencolor('red')
circle(0, 0, r-10)
circle(0, 0, 100)
screen.exitonclick()
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您可以使用itertools.cycle来循环显示颜色:
from itertools import cycle
colors = cycle(["red", "blue"])
# ...
def circle(...):
turtle.pencolor(next(colors)) # will assign alternating values
# ...
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