实验8

from turtle import *
def square(size=50,rgb='orange'):
    pencolor(rgb)
    for i in range(4):
        fd(size)
        left(90)
def main():
    setup(800,600)
    speed(0)
    n=10
    for i in range(n):
        square(80)
        left(360/n)
    hideturtle()
    done()
if __name__=='__main__':
    main()

 

 

from turtle import *
setup(800,600)
pencolor('pink')
n=10
for i in range(n):
    for i in range(2):
        circle(80,90)
        left(90)

    right(360/n)

hideturtle()
done()

 

 

from turtle import *
setup(800,600)
bgcolor('black')
pencolor('white')
speed(0)
angle=0
size=2
n=8
for i in range(n):
    for j in range(5):
        fd(size)
        angle+=72
        seth(angle)
        size+=5
hideturtle()
done()

 

 

from turtle import *
from random import random
setup(800,600)
speed(0)
def moveto(x,y):
    penup()
    goto(x,y)
    pendown()
def rect(width,high,rgb):
    color(rgb)
    begin_fill()
    for i in range(2):
        fd(width)
        left(90)
        fd(high)
        left(90)
    end_fill()
n=20
width=25
width1=width*(-10)
high=50
for i in range(20):
    moveto(width1,0)
    rgb = tuple(random() for i in range(3))
    rect(width,high,rgb)
    width1+=width
hideturtle()
done()