实验八

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 j 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


def move_to(a,b):
    penup()
    goto(a,b)
    pendown()

def get_rgb():
    ls=[]
    rgb=tuple(random() for i in range(3))
    while rgb in ls:
        rgb=tuple(random() for i in range(3))
    ls.append(rgb)
    return rgb

def draw_rectangle():
    begin_fill()
    rgb=get_rgb()
    color(rgb,rgb)
    for i in range(2):
        fd(30)
        left(90)
        fd(60)
        left(90)
    end_fill()

setup(800,600)

speed(0)

for i in range(20):
    move_to(-20*10+20*i,0)
    draw_rectangle()

hideturtle()
done()