实验六

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)

    for i in range(10):
        square(80)
        right(36)

    hideturtle()
    done()


if __name__ == ‘__main__‘:
    main()

from turtle import *

setup(800, 600)
pencolor("red")

for i in range(10):

    for i in range(2):
        circle(80, 90)
        left(90)

    right(36)

hideturtle()
done()

from turtle import *

speed(0)
setup(800, 600)
bgcolor(‘black‘)
pencolor(‘pink‘)

angle = 150
size = 2

for i in range(12):
    for j in range(4):
        fd(size)
        angle += 72
        seth(angle)
        size += 4

hideturtle()
done()

from turtle import *
from random import random

def square(wideth = 20, highth = 50):
   rgb = tuple(random() for i in range(3))
   for i in range(2):
        color(rgb)
        begin_fill()
        fd(wideth)
        left(90)
        fd(highth)
        left(90)
        end_fill()

def moveto(x,y):
    penup()
    goto(x,y)
    pendown()

def main():
    setup(800, 600)
    speed(0)
    left(180)
    moveto(-200,0)
    right(180)
    for i in range(20):
        square()
        fd(20)

    done()

if __name__ == ‘__main__‘:
    main()