彩虹

[python]代码库

import turtle
q = turtle.Pen()
turtle.bgcolor("black")
sides = 7
colors = ["red", "orange" , "yellow" , "green" , "cyan" , "blue" , "purple"]
for x in range (360):
    q.pencolor(colors[x%sides])
    q.forward(x*3/sides+x)
    q.left(360/sides+1)
    q.width(x*sides/200)