python draws square spiral

This article introduces how to draw a square spiral in python using the turtle library. The code is very simple. I hope it will be helpful to students who are learning python!

Python draws a square spiral

Use python to draw a spiral, using the turtle library, which is python2. A simple drawing tool introduced in version 6 is called Turtle Graphics. The turtle library is an internal library of Python and can be imported when used.

import turtle as t
t.pen(speed=0)   #加快绘图速度
t.penup()
t.goto(-200, -200)     #以左下角某处为起点
t.pendown()
t.seth(0)
length = 400
while (length !=0):    #利用正方形螺旋线的性质来绘图
    t.fd(length)
    t.left(90)
    length -= 2.5
t.hideturtle()         #绘图结束后把海龟头(笔触头)隐藏起来
t.done()               #绘图结束后使窗口停留

Rendering

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