Python教学案例|海龟绘图三例

说明：海龟绘图网上的案例非常多，网上百度一搜就可以找到各种各样的不同绘图参考代码，简单的有，难的有绘制梵高画、九大行星图等等，有需求的最好问度娘，简单又方便。

分享Python 基础教程:

https://www.runoob.com/python/python-tutorial.html

01

四色彩色螺旋线

from turtle import *
from time import *
import turtle
t = Turtle()
t.pensize(2)
turtle.bgcolor("black")
colors = ["red", "yellow", 'purple', 'blue']
t._tracer(False)
for x in range(200):
t.forward(2*x)
t.color(colors[x % 4])
t.left(91)
t._tracer(True)
done()

02

六色彩色螺旋线

from turtle import *
from time import *
import turtle
t = turtle.Pen()
turtle.bgcolor("black")
sides=6
colors = ["red", "yellow", "blue", "orange", "green", "purple"]
for x in range(100):
t.pencolor(colors[x%sides])
t.forward(x * 3/sides + x)
t.left(360/sides + 1)
t.width(x*sides/200)
t._tracer(True)
done()

03

彩色炫酷图

import turtle
t = turtle.Pen()
turtle.bgcolor("black")
sides=6
colors=["red","yellow","green","blue","orange","purple"]
for x in range(360):
t.pencolor(colors[x%sides])
t.forward(x*3/sides+x)
t.left(360/sides+1)
t.width(x*sides/180)
t.left(91)

END