How to draw a spiral in python

The following will bring you an article on how to use Turtle to draw spirals.

The simplest square spiral curve graph, see the example: (Recommended learning: Python video tutorial)

Set the starting point of the brush position in advance to (-450, 150), adjust the brush color to blue, and then use a for loop to shorten the distance drawn by the brush. The n value of turtle.fd(n) in the for loop loops Subtract one at a time, and then you have the most basic square spiral curve graph

The result graph is as follows:

Code:

import turtle
 
n = 500
turtle.penup()
turtle.goto(-450,150)
turtle.pendown()
turtle.pencolor("blue")
 
for i in range(500):
    n = n - 1
    #n -= 1
    turtle.speed(100)
    turtle.fd(n)
    turtle.right(90)
 
turtle.pendone()

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